`1`. We sometimes go to the cinema with our neighbours.

`2`. Jane is often late for her class.

`3`. Does Frank always wear socks?

`4`. They are never at home.

`5`. How often do you and your sister play tennis?

`6`. Does your friend have a dog?

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Thì HTĐ:

`+)` S + (adv chỉ tần suất) + V(_s/es)...

`-)` S + do/does + not + (adv chỉ tần suất) + V_inf

`?)` (Wh) + Do/Does + S + (adv chỉ tần suất) + V_inf?

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. We sometimes go to the cinema with our neighbours.

2. Janice is often late for her class.

3. Does Frank always wear socks?

4. They are never at home.

5. How often do you and your sister play tennis?

6. Does your best friend have a dog?

`color{orange}{~LeAiFuRuiHuiBao~}`