Question

Identify the modal verb in the sentence:
I have written a poem.
a) I
b) Have
c) Poem
d) None of the above

Answer 1

Hint: We know that verbs are the action words used in a sentence and modal verbs determine the mood of the sentence, like an obligation, permission, and possibility

Complete answer:
Recalling what we have learned about verbs, we know that Auxiliary verbs act as helping verbs, they 'help' the main verb, by determining the tense of the sentence. The given sentence does not contain a particular mood, like permission (may) or possibility (can), etc.
Now we shall traverse through the options given to us, one by one to reach the correct answer of finding the modal verb in the sentence.
We know that 'I' is a pronoun that refers to the first person, which means, the person speaking the statement itself. It does not determine the mood of the sentence, hence option A is incorrect.

Option b, have, is an auxiliary verb, it's not modal, it determines the tense of the sentence (present perfect tense) and not the mood therefore we know that option B is also incorrect.
Looking at the third option, poem, we know that 'Poem' is a noun that refers to a piece of writing of the genre 'poetry', it does not determine the mood of the sentence, hence option C is also incorrect.
Since the sentence does not contain any modal verb we can conclude that option d, none of the above options is correct.

Note:
It is not mandatory for a sentence to have a modal verb, so do not get confused and do not search for something in a sentence forcefully.