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,....

Công thức thì HTTD 

(+) S + am/is/are + Ving 

(-) S + am/is/are + not + Ving 

(?) Am/Is/Are +S +Ving? 

DHNB: now, right now, (!), at present, at the moment,.....

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, ...

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What: cái gì 

How: như thế nào 

Where: ở đâu 

When: khi nào 

How often: tần suất 

How much: số lượng 

How many: số lượng

-------------------------------------------------

1. What is Sarah interested in?

2. What are they looking at?

3. How does this flower smell?

4. Where did they stay when they visited Ha Long Bay last month?

5. When does Kate usually do aerobics?

6. How often do you and your family go for a picnic?

7. How is she when she visits the dentist? / How does she fell when she visits the dentist?

8. How much butter do you need for the cake?

9. How many classes are there in your school?

10. When did you get a new bike?

`color{orange}{~LeAiFuRuiHuiBao~}`