There are 24 special verbs in English.
They are also divided into 2 parts.
#1. For the Tense.
# 2. For the ‘Operator’
In Tense, there are 13 special verbs.
In Present Tense, there are 7 special verbs.
am, is, are, do, does, have and has.
In Past Tense, there are 4 special verbs.
was, were, did and had.
In Future Tense, there are 2 special verbs.
shall and will.
In Operator, there are 11 special verbs.
Can, Could, May, Might, Must, Would, Should, Used to, Ought to, Need to and Dare to.
Note: If you can’t find out any special verbs in a sentence, make sure that that sentence is either present indefinite tense or past indefinite tense.
After subject, if you notice the present form of verb then it is present indefinite tense.
On the other hand, if the verb is in the past form, then it is past indefinite tense.
i) Monica goes to shopping mall. [Present Indefinite]
ii) She went to America.[Past Indefinite]