Công thức thì QKĐ (V: thường)

(+) S + V2/ed 

(-) S + didn't + V1 

(?) Did + S+ V1?

DHNB: ago, last (year, month ...), yesterday, in + năm QK, ...

Công thức thì TLĐ

(+) S + will + V1 

(-) S + won't + V1 

(?) Will + S+ V1? 

DHNB: in the future, in + năm ở TL, in + time, next week, next year, ....

Công thức thì HTĐ (V: thường)

S số ít, he, she, it 

(+) S + Vs/es

(-) S+ doesn't + V1 

(?) Does +S +V1?

S số nhiều, I, you, we, they

(+) S + V1 

(-) S+ don't + V1 

(?) Do + S+ V1? 

DHNB: always, usually, sometimes, often, never, seldom,....

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1. Did you take part in the Festival Flowers?

take part in: tham gia 

2. What did you do on Teacher's Day?

on + ngày 

3. Where will she be next week?

4. We went to school by bus last week.

go to place: đi đến đâu

by + phương tiện

5. I often have bread and milk for breakfast.

6. I didn't go to bed late last night.

`color{orange}{~LeAiFuRuiHuiBao~}`