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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EX1: 

1. travels 

DHNB: every summer 

2. prefers 

3. leaves

DHNB: every day 

4. visits

DHNB: usually 

5. opens / closes 

EX2: 

1. She doesn't speak three languages fluently. 

2. They don't enjoy hiking in the mountains. 

3. He doesn't play the piano beautifully. 

4. I don't eat lunch at noon. 

5. The children don't go to school by bus. 

EX3:

1. 

Question: Does he play basketball every Sunday? 

Answer: Yes. he does.  

2.

Questions: Does she enjoy painting in her free time?

Answer: Yes, she does.