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,.....

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2. sits 

DHNB: often (HTD)

3. is reading

4. sleep 

DHNB: at night (HTD)

5. goes 

6. watch

DHNB: every day (HTD)

7. am writing 

DHNB: now (HTTD)

8. walks 

DHNB: usually (HTD)

9. is making

DHNB: now (HTTD)

10. is coming

DHNB: now (HTTD)

`color{orange}{~LeAiFuRuiHuiBao~}`