Question

Fill in the blank with suitable auxiliary verb-
_________ I seen you before?
a) Am
b) Does
c) Has
d) Have

Answer 1

Hint: An auxiliary verb is a verb that adds functional or grammatical meaning to the clause in which it appears, so as to express tense, aspect, modally, voice, emphasis, etc.

Complete answer:
 Auxiliary verbs usually accompany the main verb. The main verb provides the main sematic content of the clause. There are four options given, you have to fill in the blank with the most suitable one.
Now, let us examine all the given options to find out the correct option -
Option ‘a’ is Am. It cannot be used in the given sentence as we cannot use ‘am’ before ‘I’. Generally, ‘am' is used after ‘I’. So, we will eliminate this option.
Option ‘b’ is Does. It is the third form of ‘do'. Do is a verb which means to perform; achieve or complete something. It cannot be the correct answer as we cannot use ‘does’ before ‘I’.
Option ‘c’ is Has. Its primary meaning is to possess, own, hold for use, or contain. It is used with pronouns such as he, she, it, etc. We cannot use it in the given sentence.
Option ‘d’ is Have. It also means to possess or own something, but it can be the correct option as we can use ‘have’ with ‘I’.
As we have analyzed all the given options we can easily figure out the correct option. Here, the word which can be used in the blank is – Have. The complete sentence would be – Have I seen you before? Hence, option ‘d’ is the correct option.

Note:
 The difference between ‘has' and ‘ have' is that has is used with he, she, and it. Whereas, have is used with I, you, we, and they.