`1`, isn't

`-` DHNB : usually -> chia THTĐ.

`-` Cấu trúc THTĐ với tobe :

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

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

`?)` Am/Is/Are  +S+  ..... ?

`-` He/She/It + tobe is

`2`, never eat

`3`, doesn't want

`4`, often has

`-` THTĐ diễn tả `1` thói quen diễn ra thường xuyên, `1` sự thật hiển nhiên.

`-` Cấu trúc với V :

`+)` S + V/Vs,es

`-)` S + don't/doesn't + V 

`?)` Do/Does +S+ V ?

1, She isn't usually at home on sunday.

2, They never eat so much.

3, She doesn't want coffee.

4, He often has coffee at breakfast.

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Hiện tại đơn :

Với động từ thường :

( + ) S + V ( s / es )

I / You / We / They + V ( nguyên mẫu )

He / She / It + V ( s / es )

( - ) S + don't / doesn't + V ( nguyên mẫu )

I / You / We / They + Don't + V ( nguyên mẫu )

He / She / It + Doesn't + V ( nguyên mẫu )

( ? ) Do / Does + S + V ( nguyên mẫu )

Do + I / You / We / They + V ( nguyên mẫu ) ?

Does + He / She / It + V ( nguyên mẫu ) ?

Với tobe :

( + ) S + am / is / are + N / Adj

I + Am                     You / We / They + are                      He / She / It + is

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

( ? ) Am / Is / Are + S + N / Adj ?