`-` HTĐ : 

`+` KĐ : S + Vs / es `-` S + is / am / are + adj / n

`+` PĐ : S + don't / doesn't + V `-` S + isn't / 'm not / aren't + adj / n

`+` NV : Do / Does + S + V ? `-` Is / Am / Are + S + adj / n ?

`=>` `DHNB` : usually , always , often , sometimes , ...

`-` QKĐ :

`+` KĐ : S + Ved / V2 `-` S + was / were + adj / n 

`+` PĐ : S + didn't + V `-` S + wasn't / weren't + adj / n

`+` NV : Did + S + V ? `-` Was / Were + S + adj / n ?

`=>` `DHNB` : yesterday , ago , last , ...

`I`.

`1`.

`( + )` They visit Hue every summer

`( - )` They don't visit Hue every summer

`( ? )` Do they visit Hue every summer ?

`( Wh )` Where do they visit every summer ?

`\rightarrow` Where dùng để hỏi về địa điểm

`2`.

`( + )` Mai always watches TV

`( - )` Mai doesn't always watch TV

`( ? )` Does Mai always watch TV ?

`( Wh )` What does Mai always do ?

`\rightarrow` What dùng để hỏi về cái gì ( `I.2 - II.1 , 2` )

`3`.

`( + )` He studies Maths 3 times a week

`( - )` He doesn't study Maths 3 times a week

`( ? )` Does he study Maths 3 times a week ?

`( Wh )` How often does he study Maths ?

`\rightarrow` How often dùng để hỏi về mức độ thường xuyên

`4`.

`( + )` Lan is at home every Sunday evening

`( - )` Lan isn't at home every Sunday evening

`( ? )` Is Lan at home every Sunday evening ?

`( Wh )` Where is Lan every Sunday evening ?

`\rightarrow` Where dùng để hỏi về địa điểm

`II`.

`1`.

`( + )` They visited Hue yesterday

`( - )` They didn't visit Hue yesterday

`( ? )` Did they visit Hue yesterday ?

`( Wh )` What did they do yesterday ?

`2`.

`( + )` Mai watched TV last week

`( - )` Mai didn't watch TV last week

`( ? )` Did Mai watch TV last week ?

`( Wh )` What did Mai do last week ?

`3`.

`( + )` He studied Maths 3 days ago

`( - )` He didn't study Maths 3 days ago

`( ? )` Did he study Maths 3 days ago ?

`( Wh )` When did he study Maths ?

`=>` When dùng để hỏi về mốc thời gian ( `3 , 4` )

`4`.

`( + )` Lan was at home last Sunday 

`( - )` Lan wasn't at home last Sunday

`( ? )` Was Lan at home last Sunday ?

`( Wh )` When was Lan at home ?

`\text{@ Tails347}`

-tham khảo !

`1` They visit Hue every summer 

`2` Mai always watches T.V

`3` He studies maths 3 times a week

`4` Lan is at home every Sunday evening

`-` Cấu trúc câu ở thì hiện tại đơn với động từ thường

(+) S + V0/s/es + ...

(-) S + do/does + not + `V_0` + ...

(?) Do/Does + S + `V_0` + ...

`-` Cấu trúc câu ở thì hiện tại đơn với động từ "tobe" 
(+) S + am/is/are + N/adj

(-) S + am/is/are + not + N/adj

(?) Am/is/are + S + N/adj

`II`

`1` They visited Hue yesterday

`2` Mai watched T.V last week

`3` He studied Math 3 days ago

`4` Lan was at home last summer

`-` Cấu trúc câu ở thì quá khứ đơn với động từ thường

(+) S + `V_(ed)` `/` `V_2` + ...

(-) S + did + not + `V_0` + ...

(?) DId + S + `V_0`

`-` Cấu trúc câu ở thì quá khứ đơn với động từ "tobe"

(+) S + was/were + N/adj +...

(-) S + was/were + not + N/adj + ...

(?) Was/were + S + N/adj + ...

`\text{@ TheFallen}`