Đặt trạng từ thường xuyên vào vị trí đúng

Công thức thì HTĐ (V: tobe)

(+) S + am/is/are ..

(-) S + am/is/are + not .. 

(?) Am/Is/Are + S + ... ? 

I + am

S số ít, he, she, it + is

S số nhiều, you ,we, they + are

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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ADV chỉ tần suất + V 

tobe + ADV chỉ tần suất 

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1. They often go to the movies.

2. He rarely listens to classical music.

3. He sometimes reads the news.

4. Clara never smiles.

5. She always complains about her father.

6. I sometimes drink milk.

7. Frank is often ill.

8. He usually feels happy.

9. I don’t always go swimming in the afternoon.

10. She never helps her daughter with her homework.

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