Change the following sentences in Future Perfect Tense

6. I shall do it well.
7. The dramatist will write a play for us.
​8. The gardener will be giving round ends to the hedges.
9. Harry will take care of the children in the house.
10. Mr. John will not be playing the piano.

6. I shall have done well.
7. The dramatist will have written a play for us.
8. The gardener will have given round ends to the hedges.
9. Harry will have taken care of the children in the house.
10. Mr. John will not have played the piano.
Hope you find my answer useful
Regards
Akanksha