Question

Which is the auxilary verb
She wrote a letter

Answer 1

Answer:

• An auxiliary verb helps the main (full) verb and is also called a "helping verb." With auxiliary verbs, you can write sentences in different tenses, moods, or voices. Auxiliary verbs are: be, do, have, will, shall, would, should, can, could, may, might, must, ought, etc. I think I should study harder to master English.

Answer 2

Answer:

wrote

Explanation:

The basic form of an English sentence is:

                                             NP Aux VP

where “NP” is a Noun Phrase (the subject), “Aux” is the Auxiliary Verb(s), and “VP” is the Verb Phrase.  Here I discuss the structure and function of the Auxiliary Verb(s), and related topics.

Auxiliary Verb: Tense (Modal) (Have-en) (Be-ing)

Auxiliary Verbs must always come in this order in English.  Tense is required in a complete sentence of English; the other Auxiliaries are optional. (I show that these other Auxiliaries are optional by putting them in parentheses).