1.过去将来进行时:They said they would be coming.
2.过去将来完成时:I thought you'd have left by this time.
3.过去将来完成进行时:we should have been working.
4.将来完成进行时:I shall have been working here in this factory for twenty years by the end of the year.
1.过去将来进行时:They said they would be coming.
2.过去将来完成时:I thought you'd have left by this time.
3.过去将来完成进行时:we should have been working.
4.将来完成进行时:I shall have been working here in this factory for twenty years by the end of the year.