HTĐ

→ S +  Vs/es

→ S +don't / doesn't + V nguyên mẫu

→do/ does + S + V nguyên mẫu

dấu hiệu nhận bt 

→ always

→ often

→ usually

→seldom

→ once a week

→ twice a week

→ everyday

1 go

2 visit

3 play

4 works

5 tells

6 helps

7 swim

8 dance

9 takes care

10 leaves

II HTTD

→ S + be + V-ing

→ S + be not + V-ing

→ be + s + V -ing

dấu hiệu nhận bt 

→ look ! 

→ now

→ at the moment

→ at present

1 is listening

2 rains ( thì HTĐ : S + VS/ES )

3 works - isn't working

4 is running - wants

5 is speaking - comes

6 is coming

7 is holding

8 smell

9 is snowing

10 is swimming

1 

I. 

1. go

2. visit

3. play

4. works

5. tells

6. helps

7. swim

8. dances

9. takes care

10. leaves

II.

1. is listening

2. is raining

3. is working, isn't working

4. is running, is wanting

5. is speaking, is coming

6. is coming

7. is holding

8. are smelling

9. is snowing

10. is swimming

*Cấu trúc thì hiện tại đơn:

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

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

(? ) Do/ Does + S + V_inf?

*Thì hiện tại tiếp diễn:

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

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

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