No, air is a noun.
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.
The verb in the phrase "are you concerned about air pollution" is "are." It is a form of the verb "to be," which serves as a linking verb in this context, connecting the subject "you" to the adjective "concerned."
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.
Was is a linking verb.