Past simple , past perfect and past continuous when we (to go) to school.i (to meet) my friend.when grandmother (to go ) home. she (to see) many children in the yard.when we (to walk) about in the forest we (to see) a hare. we (to answer) the teachers questions when the headmistress (to enter) the classroom.he (to want) to visit the place where he (to live) in his childhood . when the rain (to stop) , i (to look) out of the window and (to see) john who (to stand) under a tree.