Which of the following is not one of the twelve morphological classifications recognized by structural

The correct answer is 4. transform.

According to structural grammarians, who, as the name itself suggests, study the structure of grammars, there are 12 types of words, some of which include adjectives, nouns, verbs, etc. In the list above, we can immediately see that adjectives and nouns fall under the category of morphological classifications.

Auxiliary mostly refer to auxiliary verbs, such as to be, to have, etc. which are used to form various tenses.

The only option that is not one of the morphological classifications is transform.

The correct answer is B.

the twelve morphological classifications recognized by structural grammarians  are: noun, verb, adjective, adverb, auxiliary, preposition, determiner, conjunction, pronoun, interrogative, intensive, unnamed class.

Function words: they are  words that show a relationship between the grammatical and structural with other words in a sentence. They can be  prepositions, pronouns, auxiliary verbs, conjunctions, grammatical articles or particles .

The correct answer is D.

The twelve morphological classifications recognized by structural grammarians are:

Noun, verb, adjective, adverb, auxiliary, preposition, determiner, conjunction, pronoun, interrogative, intensive, unnamed class.

Since A (adjective), B (noun) and C (auxiliary) are included in the classification, it is D (transform) with is not included in the recognized classifications.

B) Function word

The twelve morphological classifications of structural grammar are: noun, adverb, adjective, auxiliary, preposition, determiner, conjunction, pronoun, interrogative, intensive, unnamed class and, verb

The answer is transform 

The twelve morphological classifications of structural grammar include adjective, noun, and auxiliary.  Transform is not one.