THÌ QUÁ KHỨ HOÀN THÀNH TIẾP DIỄN: Past perfect continuous Từ nhận biết: • Until then • By the time • Prior to that time • Before, after.
Trang 1THÌ QUÁ KHỨ HOÀN THÀNH TIẾP DIỄN:
(Past perfect continuous)
Từ nhận biết:
• Until then
• By the time
• Prior to that time
• Before, after.
- Phủ định (-) : S + had not + been + V -ing
had not = hadn’t
- Câu hỏi (?) : Had + S + been + V -ing ?
Yes, S + had
No, S + had not