请分别用过去将来时，将来完成时，过去完成时造句，词汇尽量简单

She said she was going to return home.过去将来时，她说她要回家。We will have learned 12 units by the end of this term.将来完成时，到这个学期末，我们将学完12个单元。I returned the book that I had borrowed.过去完成时，我已归还了我借的书。