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,.....

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

1. aren't 

2. is 

3. are

4. don't go

DHNB: on Saturday (HTD)

5. has / doesn't have 

6. studies 

DHNB: every Friday (HTD)

7. gets / washes / brushes / has / goes 

DHNB: every morning (HTD)

8. does he do 

9. Does he have

10. has / doesn't have / eats 

11. doesn't have 

12. comes / is staying 

DHNB: at the moment (HTTD)

13. don't drive / go

DHNB: every day (HTD)

14. are you talking 

DHNB: now (HTTD)

15. does your new friend live / lives 

16. Are you / am 

`color{orange}{~MiaMB~}`