He hasn't called his friends.
Misha has writen a letter to his sister.
The children have cleaned the forest.
She hasn't walked the dog.
They have bought a new computer.
I have left the book at home
( Короче, ставишь вспомогательный глагол have/has и после него, если это непр.глагол, то 3 столбик в таблице неправ. глаголов, а если правильный, то окончание -ed добавляешь...