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What’s the difference between “should do” and “should have done”?
“Should do” = advice for the present or future. “Should have done” = regret or criticism about the past.
Translate: “I should have studied medicine.”
Tôi đáng lẽ nên học ngành y.
Which sentence shows less certainty: A. He must have missed the bus. B. He might have missed the bus.
B
Is “could have” stronger or weaker than “might have”? Why?
“Could have” is usually weaker when showing possibility, because it suggests one possible option among others.
Translate: “I would have helped you, but I didn’t know.”
Tôi đã giúp bạn rồi, nếu tôi biết.
When you say “You would have loved it,” are you describing something that really happened?
No. You’re talking about something imaginary in the past that did not happen.
What does “should have + Ved/3” express — a plan, a regret, or a possibility?
It expresses regret or criticism about a past action.
What does “may/might have + Ved/3” mean? (a) It was possible. (b) It definitely happened.
A
What does “could have + Ved/3” mean? (a) You had the ability, but didn’t. (b) You couldn’t do it.
A
When you say “I could have gone to Paris,” did you actually go?
No, you didn’t.It means you had the chance or ability to go, but you didn’t do it.
Does “could have” mean both ability and possibility? Give an example.
Yes. Ability: I could have lifted that box if you’d asked. Possibility: It could have rained last night.
What does “would have + Ved/3” usually express? (a) Imagination (b) Real past (c) Future plan
A
Which modal expresses guessing about the past?
May have / Might have / Must have.
When someone says “You should have told me!”, they are: a. Giving advice for now. b. Expressing regret or criticism about the past.
B
Translate: “He may have forgotten the meeting.”
Anh ấy có lẽ đã quên buổi họp.
Translate: "“He could have been a doctor if he had studied.”
Anh ấy đã có thể trở thành bác sĩ nếu anh ấy chịu học.
