Give the correct form of verbs given

Give the correct form of verbs given:

1. I'm sorry. I (not finish) …………………………......this work yet.

2. Poems as well as play (write) ................................. by William Shakespeare.

3. How many times ………………..you (be) ……………….... to Van Mieu?

4. They like (chat) ................................. . They use the Internet very often.

5. I (have) ................................... a phone call while I (surf) ............................. the wed yesterday.