`\text{1. }`I have visited Ha Long bay many times

`\text{2. }`Lan has already done homework

`\text{3. }`Tom has sent a gift to his sister recently

`\text{4. }`We have been there before

`\text{5. }`The girls have worked for a long time

`\text{6. }`The students have read in the libary since 9 o'clock

`\text{7. }`The mom has already made a big cake

`\text{8. }`They have seen this film once

- Cấu trúc hiện tại hoàn thành:

(+) S+ have/ has+ V-ed/ bqt

(-) S+ haven't/ hasn't+ V-ed/ bqt

(?) Have/ Has+ S+ V-ed/ bqt?

- Trong đó: 

 I/ We/ You/ They/ Danh từ số nhiều + have+..

                 He/ She/ It / Danh từ số ít+ has+...

- DHNB: for a long time, since, already, before,....

`\text{# themoonstarhk}`

$\text{*Structure: Present Perfect}$

$\text{(+) S + have/has + Ved/V3 + ...}$

$\text{(-) S + have/has not + Ved/V3 + ...}$

$\text{(?) Have/Has + S + Ved/V3 + ...?}$

`-` Ngôi thứ `3` số ít: he/she/it/tên riêng/danh từ số ít `->` trợ đt là has

`-` Ngôi thứ `1,2,3 số nhiều`: you/I/we/they/danh từ số nhiều `->` trợ đt là have

--------------------------------------------------

`1.` I have visited Ha Long Bay many times

`2.` Lan has already done homework.

`3.` Tom has sent a gift to his sister recently.

`4.` We have been there before.

`5.` The girls have worked for a long time.

`6.` The students have read in the libary since 9 o'clock.

`7.` The mom has already made a big cake.

`8.` They have seen this film once.

$chucbanhoctot$

$\textit{~KaitoKid!}$