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 TLĐ

(+) S + will + V1 

(-) S + won't + V1 

(?) Will + S+ V1? 

DHNB: in the future, in + năm ở TL, in + time, next week, next year, ....

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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39. do your children eat 

DHNB: every day (HTD)

40. watches

DHNB: every evening (HTD)

41. isn't writing

DHNB: at this time (HTTD)

42. Will my parents buy 

DHNB: next month (TLD)

43. speak

can + V1: có thể làm gì 

44. isn't

There isn't + any + N không đếm được 

45. to come 

would like + to V / N : muốn 

1. doesn't work 

2. are going to visit

DHNB: this summer vacation (TLD)

S + am/is/are + going to + V1 

3. does your son have 

DHNB: usually (HTD)

4. learn

should + V1: nên làm gì 

5. to buy 

would like + to V / N : muốn 

6. rides / is walking 

DHNB: every day (HTD), today (HTTD)

`color{orange}{~LeAiFuRuiHuiBao~}`