No. Irregular can be used as an adjective or a noun but not a verb.
Yes, had is an action verb; had is also an used as an auxiliary (helper) verb (I had broken my glasses.).
no,verbs are doing words such as run and sing...
No. The verb to become is a linking verb, and the verb to be is a linking verb, but they are two separate verbs.
Was is a linking verb.
Linking verb
"Did" is not a linking verb.
Linking verb.Were is the past tense plural be verb any form of be verb is a linking verb.
"It" is not a linking verb. "It" is a pronoun.
action, it is the past tense of the verb surround.
the word were is a LINKING VERB.
it is a linking verb
The linking verb is are.