Dưới đây là cách tạo câu hỏi đuôi theo từng thì: 1. Hiện tại đơn: Câu khẳng định: S + V: Do/does + S + V? (Ví dụ: You speak English, do you?) S + am/is/are + O: Am/is/are + S + O? (Ví dụ: She is a doctor, isn't she?) S + have/has + V3 + O: Have/has + S + V3 + O? (Ví dụ: We have seen this movie, haven't we?) Câu phủ định: S + don't/doesn't/did not + V: Do/does + S + V? (Ví dụ: She didn't come to the party, did she?) S + am/is/are not + O: Am/is/are + S + O? (Ví dụ: They are not from Vietnam, are they?) S + have/has not + V3 + O: Have/has + S + V3 + O? (Ví dụ: I had not finished my homework, had I?) 2. Quá khứ đơn: Câu khẳng định: S + V2: Did + S + V? (Ví dụ: She came to the party, didn't she?) S + was/were + O: Was/were + S + O? (Ví dụ: They were from Vietnam, weren't they?) S + had + V3 + O: Had + S + V3 + O? (Ví dụ: I had finished my homework, hadn't I?) Câu phủ định: S + did not + V: Did + S + V? (Ví dụ: He didn't go to school, did he?) S + was/were not + O: Was/were + S + O? (They weren't here, were they?) S + had not + V3 + O: Had not + S + V3 + O? (She hadn't seen the movie, had she?) 3. Hiện tại hoàn thành: Câu khẳng định: S + have/has + V3 + O: Have/has + S + V3 + O? (Ví dụ: We have been to London, haven't we?) Câu phủ định: S + have/has not + V3 + O: Have/has not + S + V3 + O? (Ví dụ: She has not bought a new car, has she?) 4. Quá khứ hoàn thành: Câu khẳng định: S + had + V3 + O: Had + S + V3 + O? (Ví dụ: They had left before I arrived, hadn't they?) Câu phủ định: S + had not + V3 + O: Had not + S + V3 + O? (Ví dụ: He had not seen the movie, had he?) 5. Tương lai đơn: Câu khẳng định: S + will + V: Will + S + V? (Ví dụ: I will go to the beach tomorrow, won't I?) Câu phủ định: S + won't + V: Won't + S + V? (Ví dụ: They won't come to the...) 6. Quá khứ đơn: Câu khẳng định: S + would + V: Would + S + V? (Ví dụ: He would have helped me, wouldn't he?) Câu phủ định: S + wouldn't + V: Wouldn't + S + V? (Ví dụ: She wouldn't have gone if you had asked her, would she?) #cauhoiduoi