* The form of the present perfect tense:
(+) S + have / has + past participle
(-) S + have / has + not + past participle
(?) Have / Has + S + past participle ?

-
Tidy the room.
-
Do homework.
-
Turn off the washing machine.
-
Call and tell Aunt Le to have lunch.
( already )
( already )
( already )
( not yet )
* Model sentences:
T : Has Ba done his homework yet ?
S : Yes, he has already done his homework.
T : Has Ba tidied the room yet ?
S : No, he hasn’ t tidied the room yet.

T : Has Ba done his homework yet ?
S : Yes, he has already done his homework.
T : Has Ba tidied the room yet ?
S : No, he hasn’ t tidied the room yet.
* Concept check : Present perfect with “ Yet ” and “ Already ”.
+ Use :

Los Angeles
Manila
Jakarta
Kuala Lumpur
Delhi
TimeFlight
ToFlight Time Status
Status
Arrived
Arrived
Arrived
Departed
Departed
6.55
7.10
7.40
7.50
8.30
VN 888
PA 45
GA 127
MS 284
AI 84
VN 34
CX 820
AF 19
TG 109
GS 05
Vientiane
Hong Kong

Arrived
Arrived
Arrived
Departed
Departed
6.55
7.10
7.40
7.50
8.30
VN 888
PA 45
GA 127
MS 284
AI 84
VN 34
CX 820
AF 19
TG 109
GS 05
Vientiane
Hong Kong
Paris
Bangkok
Singapore
7.25
7.45
7.50
7.55
8.15

√

* The difference between the present perfect and the
past simple:
+ Past simple : - finished action with definite time.
+ Present perfect: - finished action with indefinite time.
- an action (not) taking place from the
past to the present.
* Example:
Lan lived in Hue in 2005.
Lan has lived in Hue since 2005.

* Complete the dialogues. Use the present perfect or the
past of the verbs in brackets.
Ba : you the film Jurassic Park yet ? ( see )
Nam: Yes, I have.
Ba : When you it ?
Nam: I it three months ago.
Have seen
did see
saw
Loan: We a vacation since last year.
Chi : Why not ? ( not have )
Loan: My parents very busy since then. (be)
haven’t had
have been

* Complete the dialogues. Use the present perfect or the
past of the verbs in brackets.
Nga : you the new about Nam ? ( hear )