Question

I have written poems( change into present perfect tense)

Answer 1

Answer:

This sentence is already a present perfect tense.

Answer 2

Answer:

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My friend ,it's already in Present Perfect Tense.

Still, I have given you the forms---->

☞ Present Indefinite Tense -----> I write poems.

☞ Present Continuous Tense -----> I am writing poems.

☞ Present Perfect Tense -----> I have written poems.

☞ Present Perfect Continuous Tense -----> I have been writing poems.

Explanation:

Hope the above pic will help you.