Как изменять слова по мременам глаголов по ин яз we(twvite)letterst

We write letters. we are writing letters. we have written letters. we wrote letters. we were writing letters. we had written letters.we shall write letters. we shall be writing letters. we shall have written letters.

Ihave been riding a skateboard since my childhood.

4) you won't put on her white dress for this party.(you)5)  children  won't sing at the concert.(children)6)  jack`s parents won't buy a new tv set this year.(jack`s parents)7) mary won't play tennis after dinner.(mary)8) tom won't get up at 6 o`clock tomorrow.(tom)9) i shan't go to the museum on our day off.(i)