the boy writes on the black board просклонять предложение в разных временах по английски.

past simple:the boy wrote on the black board.past continuous:the boy was writing on the black board.past perfect:the boy had written on the black board.present continuos:the boy is writing on the black board.present perfect:the boy has writtwn on the black board.future simple:the boy will write on the black board.future continuos:the boy will be writing on the black board.future perfect:the boy will have written on the black board.вроде всё..