Asked by Marylyn

How do you form the perfect tense of a verb?
A: Use the helping verb will and the base form of the word?

B: Use a form of the verb be and the past participle of the verb?

C: Use a form of the verb have and the present participle of the verb?

D: Use a form of the verb have and the the past participle of the verb.

I think it is C
Answered by Writeacher
If you choose C, then this would be correct:

They have skiing in the mountains all their lives.

Is that correct?
Answered by Marylyn
No, then it's D.
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