`1`/ doesn't study

`2`/ have

`3`/ doesn't study

`4`/ teaches

`5`/ likes

`6`/ washes

`7`/ don't have

Công thức HTD:

S + v-infinite / s or es + ...

- ) S + don't / doesn't + v-infinite + ...

? ) Do / does + S + v-infinite + .... ?

He, she, it + v-s or es / does(doesn't)

I, you, we, they + v-infinite / do(don't)
Dấu hiệu: Những trạng từ chỉ tần xuất ( always, usually,...), everyday, everynight,.........

1. doesn't study

on Saturday → HTĐ

2. have

usually → HTĐ

3. doesn't study

Hành động diễn ra thường xuyên → HTĐ

4. teaches

often → HTĐ

5. likes

Hành động diễn ra thường xuyên → HTĐ

6. washes

every day → HTĐ

7. don't have

every morning → HTĐ

Cấu trúc thì hiện tại đơn:

*Động từ thường:

(+) S + V_inf/ V-e,es

(- ) S + don't/ doesn't + V_inf

(? ) Do/ Does + S + V_inf?

- Yes, S + do/ does

- No, S + don't/ doesn't

*Động từ tobe:

(+) S + is/ am/ are + ...

(- ) S + is/ am/ are + not + ...

(? ) Is/ Am/ Are + S + ...

- Yes, S + is/ am/ are

- No, S + is/ am/ are + not