The objects came to be viewed as a secondary or dependent (subordinate) part of the sentence in the light of the newly developed theory of subordination and coordination of sentence elements and the introduction into grammar of the content aspect of syntactic relations, such as predicative, attributive, objective and/or adverbial relations.
Thus the notion of the attribute came to be applied, instead of the predicate to a relation expressed by a secondary part of the sentence and adjuncts were subdivided into attributive (also attributival or adnominal) and adverbial adjuncts, which was the first differentiation of the secondary parts of the sentence on a syntactic level.
The objects were classified according to their meaning and form as direct, indirect and prepositional. This classification, though inconsistent logically, is accepted by many grammarians of the modern period. Objects and subjects as well were further classified as compound (i. e. coordinate), complex (expressed by infinitive groups or subordinate clauses), etc.
Besides the object and two kinds of adjuncts, some new notions and terms developed, either as synonyms for the already defined syntactic units or used in a slightly different meaning to describe some new syntactic units, which contributed to a more detailed sentence analysis.
Syntactic processes operate to derive a more complicated structure from a simpler one.
The notion of completion of the meaning of transitive or copulative verbs, defined as verbs of incomplete predication, may be understood as a designation of a syntactic process.
A very important innovation in the concept of the compound sentence was its subdivision into the compound sentence proper, with coordinated component parts, and the complex sentence, characterized by subordination of clauses. In this way the dichotomic classification of sentences into simple and compound was changed into a tricholomic division, according to which sentences are divided into simple, compound and complex. This theory has since been accepted with very few exceptions by prescriptive, classical scientific and some structural as well as transformational grammars. The recognition and differentiation of the two principal syntactic modes of joining subject-predicate units, subordination and coordination (the former expressing syntactic dependence and the latter — equality of syntactic rank), was a great advance in the development of grammatical theory. Of great interest also is the elaboration of the concept of a clause as a syntactic unit containing a noun and a finite verb and forming part of a complex or compound sentence. Clauses are classified as independent and dependent or coordinate and subordinate. The latter were also classified morphologically as noun, adjective and adverb clauses, because grammarians considered clauses to be of the nature of a word, and not of a part of the sentence. These three kinds of clauses were further subdivided according to their syntactic functions in the sentence.
The concept of the compound sentence in the new sense, as containing independent clauses or sentences, did not, it seems, satisfy those grammarians who had gained a deeper insight into the nature of the grammatical phenomena described in their grammars. They give examples illustrating the possibility of isolating the parts of the compound sentences, of pronouncing each part of such a sentence by itself, without any change of meaning or intonation and they stress the complete independence of each part.
The concept of the phrase has been retained in the grammars of the second half of the 19th century, though not all grammarians use this term, describing the syntax of the parts of speech instead. The phrase is differentiated from the clause, as containing no finite verb.
The Rise of Classical Scientific Grammar. By the end of the 19th century, after the description of the grammatical system, especially that of syntax had been completed, prescriptive grammar had reached the peak of its development. A need was fell, therefore, for a grammar of a higher type, which could give a scientific explanation of the grammatical phenomena. The appearance of H. Sweet's New English Grammar, Logical and Historical (1891) met this demand. As Sweet wrote in his Preface: "This work is intended to supply the want of a scientific English grammar." The difference in purpose between scientific and prescriptive grammar is stated in the following terms: "As my exposition claims to be scientific, I confine myself to the statement and explanation of facts, without attempting to settle the relative correctness of divergent usages. If an ‘ungrammatical’ expression such as it is me is in general use among educated people, I accept it as such, simply adding that it is avoided in the literary language." This was a new approach, in keeping with the Doctrine of General Usage which had been first formulated by an 18th-century grammarian, a contemporary of Lowth's, J. Priestley, in his Rudiments of English Grammar. But Priestley's views had been rejected, as we have seen, in favour of the Doctrine of Rules or Correctness. Sweet clearly stales the new viewpoint: "...whatever is in general use in language is for that reason grammatically correct." Scientific grammar was understood by its authors to be a combination of both descriptive and explanatory grammar. The same views on the purpose and methods of scientific grammar were held by 20th-century linguists.
ENGLISH GRAMMARS IN THE 20th CENTURY
(THE SECOND PERIOD)
The modern period may be divided into two chronologically unequal parts, the first from the beginning of the 20lh century till the 1940's, when there were only two types of grammars in use —the prescriptive and the classical scientific, the second from the 1940's, during which time structural grammar, and then transformational have been added. As has been pointed out, structural grammar tended to supplant the older scientific grammar, which we call classical in order to distinguish it from the new theoretical grammars of English.
There is a borrowing of some of the concepts of prescriptive and classical scientific grammars by the authors of both structural and transformational grammars, especially in the field of syntax, which proves that structural grammar has not quite succeeded in breaking with traditional grammar to the degree that is proclaimed by the authors of these grammars, while transformational grammar, as professed by its exponents, is closer to traditional grammar, than descriptivism.
Prescriptive Grammars in the Modern Period. Among the 20th-century prescriptive grammars which are of some interest, J. C. Nesfield’s grammar should be mentioned. Although published at the end of the 19th century (1898), it exerted a certain influence on prescriptive and even scientific grammars of the 20th century, comparable to the influence of Murray's grammar upon 19th-century grammars. The editions which preceded the revision continued the tradition of 19th century grammar: morphology was treated as it had been in the first half of the 19th century, syntax, in the second half of that century. Of the various classifications of the parts of the sentence current in the grammars of the second half of the 19th century the author chose a system, according to which the sentence has four distinct parts: (1) the Subject; (2) Adjuncts to the Subject (Attributive Adjuncts, sometimes called the Enlargement of the Subject); (3) the Predicate; and (4) Adjuncts of the Predicate (Adverbial Adjuncts); the object and the complement (i. e. the predicative) with their qualifying words, however, are not treated as distinct parts of the sentence. They are classed together with the finite verb as part of the predicate. Although grammars as a rule do not consider the object to be the third principal part of the sentence, indirectly this point of view persists since the middle of the 19th century and underlies many methods of analysis. In Nesfield's scheme, though the object is not given the status of a part of the sentence, it is considered to be of equal importance with the finite verb. In diagramming sentences, grammarians place the subject, predicate, objects and complements on the same syntactic level, on a horizontal line in the diagram, while modifiers of all sorts are placed below the line.
Revision brought about certain changes in Nesfield's grammatical system. The number of cases of the noun was increased to five (through the addition of the vocative and the dative), while classical scientific grammars, for instance, those of Sweet and Jespersen, favoured the two-case system. Another change occurred in the structural classification of sentences. Two new , terms, "double" and "multiple" sentences, were substituted for the term "compound" sentence, the term "double" denoting the coordination of two and "multiple" of more than two sentences. This innovation —a quantitative classification of independent sentences contained within a punctuation unit, is significant as symptomatic of the weakness of the concept of the "compound" sentence, intuitively felt by the members of the Joint Committee and those who followed their recommendation. According to the concept of the "compound" sentence, the combination of two or more syntactically independent, though semantically connected sentences, was analysed as a single sentence. The new terms, which were probably intended to improve the theory, became very popular in prescriptive grammar and, as we shall see, influenced some scientific grammars.
Classical Scientific English Grammar in the Modern Period. The founders of this type of grammar in the period of its intensive development either specialize in syntax or deal with the problem of both morphology and syntax.
Among the authors who specialize in syntax are L. G. Kimball, C. T. Onions and H. K. Stokoc. Both Kimball's Structure of the English Sentence (New York, 1900) and Onions' Advanced English Syntax. (London, 1904), which appeared at the beginning of the period, discuss the problems of the structure of English on the traditional plane, though in Onion's book there is a striking anticipation of the sentence patterns of descriptive linguistics. Kimball's grammar shows the influence of logical grammars of the type current in 19th-century German linguistics, K. F. Backer's grammar for example. The third book, H.R.Stokoe's Understanding of Syntax, which appeared in 1937, was also largely influenced by the views of prescriptive grammarians like Nesfield. Two of these authors are not satisfied with the traditional concept of the compound sentence. Onions passed it over in silence. Stokoe adopted the new nomenclature, describing double and multiple sentences in his book. All these authors differ from prescriptive grammarians in their non-legislative approach to the description of English structure and deeper insights into the nature of the grammatical phenomena.
Scientific grammar was the first to undermine the strictly structural concept of a clause as of a syntactic unit containing a subject and a predicate, created by prescriptive grammar. Beginning with Sweet's grammar, the authors of scientific grammars have been developing the concepts of half-clauses, abridged clauses, verbid clauses, etc., which practically destroy the original concept of clause and lead to a tendency to analyse simple sentences as complex or, to put it another way, demolish the structural distinction between simple and complex sentences. Thus Poutsma treats substantive clauses, adverbial clauses, infinitive clauses, gerund clauses and participle clauses as units of the same kind, though the last three types of "clauses" are not clauses, according to the original and, in our opinion, more correct concept of clause as a syntactic unit.
From a theoretical point of view, Kruisinga's grammar is one of the most interesting of those scientific grammars which have retained the traditional grammatical system. Kruisinga approaches the problem of the definition of the sentence critically, refraining, however, from giving a definition of his own, whereas most grammarians were content to repeat traditional logical definitions. Kruisinga originated the theory of close and loose syntactic groups, the difference between them being based on the distinction between subordination and coordination. Closely connected with this theory is the author's concept of the complex sentence. His classification is dichotomic: only two sentence types are recognized — simple and compound sentences. The traditional compound sentence is not considered to be a syntactic unit at all; the material in question is treated in connection with double and multiple loose syntactic groups.
Of all the authors of scientific grammars of the classical type O. Jespersen is the most original. His morphological system differs from the traditional in that he lists only five parts of speech — substantives, adjectives, verbs, pronouns (the latter include pronominal adverbs, and articles) and "particles", in which he groups adverbs, prepositions, conjunctions and interjections. Like Sweet, he proposes three principles of classification, according to which everything must be kept in mind — meaning, form and function, though in practice only one of these features is taken into consideration, and that is primarily form (cf. the "particles") and, in a few cases, the origin of a given form.
Jespersen’s syntactic system is more original. He intends to reject the traditional syntactic analysis, though some of the traditional terms still occur in his works and develops the concept of ranks.
Structural and Transformational Grammars. Structural grammarians begin treating the problems of the structure of English with criticism of traditional, or conventional grammar, lumping together prescriptive and scholarly grammars because their methods of approach are said to be the same. According to the point of view of structural linguists, both these types of grammar belong to a "prescientific era".
Fries believes that "the study of the usual 'formal' grammar has much the same sort of value and usefulness as the study of the astronomy of Ptolemy, or of the medical beliefs and practices of Galen, the great Greek physician". The author insists that pupils should begin the study of grammar only after ridding their minds of all previously acquired notions concerning language.
The new approach — the application of some of the newly developed techniques, such as distributional analysis and substitution — makes it possible for Fries to dispense with the usual eight parts of speech and with the traditional terms. He classifies words into four "form-classes", designated by numbers, and fifteen groups of "function words", designated by letters. The form-classes correspond roughly to what most grammarians call nouns and pronouns, verbs, adjectives and adverbs, though Fries especially warns the reader against the attempt to translate the statements which the latter finds in the book into the old grammatical terms. The group of function words contains not only prepositions and conjunctions, but also certain specific words that more traditional grammarians would class as a particular kind of pronouns, adverbs and verbs.
Further descriptive works on grammar should be mentioned. In 1951 An Outline of English Structure by G. L. Trager and H. L. Smith was published. This book was much the fullest on phonology and morphology, but, as noted by H. A. Gleason, hardly more than suggestive on syntax, though we shall see some traces of its influence in another descriptive grammar (by J. Sledd). Gleason seems to think that the two books (that of Fries and the Outline) can be looked upon as supplementing each other and that in the midfifties it looked as though the "new grammar" might emerge as a new eclectic tradition, based on these two sources with certain elements salvaged from older grammars (which was what really happened).
As has been aptly observed by Hathaway, the syntax of modern English has undergone a shrinkage at the hands of the structuralists. In Chomsky's estimation also modern structural linguistics provides little insight into the processes of formation and interpretation of sentences, and therefore it does not seem to him surprising that there has been renewed interest in the formalization and use of techniques and devices more characteristic of traditional than of structuralist grammars.
The method developed by N. Chomsky has now become widely known as Transformational Generative Grammar. It was first, expounded in Chomsky's Syntactic Structures (1957) and has been revised in the author's Aspects of the Theory of Syntax (1905). According to this theory sentences have a surface structure and a deep structure. Of these, the surface structure is the more complicated, based on one or more underlying abstract simple structures. In certain very simple sentences the difference between the surface structure and the deep structure is minimal. Sentences of this kind, simple, active, declarative, indicative, are designated as kernel sentences. They can be adequately described by phrase or constituent structure methods, as consisting of noun, and verb phrases (the so-called P-markers, the NP’s & VP's). According to Syntactic Structure's, kernel sentences are produced by applying only obligatory transformations to the phrase-structure strings (e.g. the transformation of affix + verb into verb + affix in the present tense, hit–s, etc). Non-kernel or derived sentences involve optional transformations in addition, such as active to passive (the boy was hit by the man). But later interpretations of the transformational theory have made less use of this distinction, stressing rather the distinction between the underlying "deep structure" of a sentence and its "surface structure" that it exhibits after the transformations have been applied. Transformational operations consist in rearrangement, addition, deletion and combination of linguistic elements.