1-Gerund rule
Active: S + V + O
Passive: S +to be + PP +( by +O)
Động từ chính của câu chủ động ở thì nào thì tobe phải chia ở thì đó
(PP: Past participle)
Note:
- Đặt từ ở cõu chủ động ở thỡ (tense) hay thể (form) nào thỡ “be” ở cõu bị động ở thỡ hay thể đú.
- Khi ta khụng xem người thực hiện hành động (does) là quan trọng, thỡ “ by object” cú thể bỏ đi. ( eg.
does=personal pronoun: he, she, they, we, .... people; no-one.. )
Example:
a.The simple present
She cleans the floor everyday.
( S + V / Vs / es... )
Passive: The floor is cleaned everyday.
(S + am/is/are/ +PP...)
b.The present continous.
Mr.Baker is repairing the car
Passive: the car is being repaired by Mr Baker. ( S + am/ is/ are + being + PP...)
c.The present perfect
Someone has stolen the bicycles ( S+ has/have + P.P...)
Passive: The bicycles have been stolen ( S+ has/have + been + PP...)
d.The simple past
Where did they find the drugs ? ( S + V2/ V-ed)
Passive: where were the drugs found ? ( S+ was/ were + PP...)
e.The past continuous
They were preparing luch when I came there yesterday (S+was/were + V-ing .... )
Passive: Luch was being prepared when I came there yesterday.( S+ was/ were + being + PP...)
f. The past perfect
She had written almost ten pages by 3:00 pm. ( S+ had + PP...)
Passive: Almost ten pages had been written by 3:00 p.m (S+ had been + PP...)
g. Will/ would, shall/ should, can/ could, may/might must, have to, be going to, used to, ...
Active: S+ will/would, shall/ should... + bare-infinitive + object
Passive: S + will/would, shall/shoul.... + be + past participle (+ by object).
Ex: Police will destroy these drugs.
Passive: the drugs will be destroyed by police.
Bạn đang xem 1- - DE KIEM TRA