`2`. Does your brother always do a lot of exercise?

=> DHNB : Always.

=> Cấu trúc THTĐ : Do/Does + S + (TTTX) + V?

- Is training

=> DHNB : At the moment.

=> Cấu trúc THTTD : S + tobe + V_ing.

`3`. am meeting.

=> Cấu trúc THTTD : S + tobe + V_ing.

=> DHNB : This evening.

- don't know.

=> Cấu trúc THTĐ : S + do/does + not + V.

`4`. am feeling.

=> Cấu trúc THTTD : S + tobe + V_ing.

- Do you have a stomach ache?

=> Cấu trúc THTTD : Do/Does + S + V?

`\color{#145277}{N}\color{#246483}{a}\color{#34768F} {e}\color{#44889B}{u}\color{#539AA7}{n}`

`@` Thì HTĐ : 

`(+):` S + Vs / Ves

`(-):` S + do / does + not + V-bare 

`(?):` Do / Does + S + V-bare`?`

        Wh- + Do / Does + (not) + S + V-bare `?`

`->` DHNB : Always, usually, often, frequently, sometimes

`@` He / She / It / danh từ số ít / danh từ không đếm được`+` is / does / doesn't

`@` I / You / We / They / danh từ đếm được số nhiều `+` are / do / don't

`@` Thì HTTD : 

`(+):` S + am / is / are + V-ing

`(-):` S + am / is / are + not + V-ing

`(?):` Am / Is / Are + S + V-ing`?`

        Wh- + am/ are/ is (not) + S + V-ing`?`

`->` DHNB : now, right now, at the present, at present, Look`!`, Listen`!`

`->` Diễn tả một hành động đang xảy ra tại thời điểm nói

`------------`

`2.` Does `-` do `-` is training

`-` train to be : huấn luyện để trở thành `...`

`3.` am meeting `-` don't know

`4.` am feeling `-` Do `-` have