помогите 12 предложений на тему passive voice 4 в present simple 4 в past simple и 4 в future simple заранее огромное спасибо

Past simple:I saw how a cat was saved from a tree by a fireman.Tree in my yard was planted by my grandfather.My favourite book was written by Pushkin.Present simple:Children are very happy to meet their mother.A bone was hidden by a god.Tom's car was found by policeman.Future simple.Homework will be done by me.The new building will be built soon.The bike will be bought by my brother.