The document discusses different tenses in English including present simple, past simple, present perfect, and future simple. It provides examples of how to use each tense with subjects and verbs. It also discusses using the passive voice and omitting agents in passive constructions.

1. PRESENT SIMPLE
PRESENT SIMPLE
They sell millions of of
They sell millions
CDs every year
CDs every year
Millions ofof CDs
Millions CDs
are sold every
are sold every
year
year
Subject
Subject
The flood
The flood
My camera
My camera
Subject
Subject
PAST SIMPLE
PAST SIMPLE
The Chinese
The Chinese
invented fireworks
invented fireworks
Fireworks were
Fireworks were
invented by the
invented by the
Chinese
Chinese
verb
verb
damaged
damaged
was damaged
was damaged
verb
verb
PRESENT PERFECT
PRESENT PERFECT
FUTURE SIMPLE
FUTURE SIMPLE
Millions of of people will
Millions people will
celebrate StSt
celebrate
Valentine’s Day
Valentine’s Day
My purse has
My purse has
been stolen
been stolen
StSt Valentine’s Day
Valentine’s Day
will be celebrated
will be celebrated
byby millions of
millions of
people
people
Someone has stolen
Someone has stolen
my purse
my purse
object
object
my camera
my camera
(by the flood)
(by the flood)
(agent)
(agent)
by + agent. It. goes before the object. We can omit it: it:
by + agent It goes before the object. We can omit
 When we don’t know the agent
When we don’t know the agent
 When the agent not important
When the agent is is not important
 When we don’t want to name the agent
When we don’t want to name the agent
Change the following sentences into the passive:
a) The hairdresser has done the models’ hair.
b) The decorator chose the furniture for the event some days ago.
c) A famous photographer will take some photos of the shooting.
d) A prestigious restaurant has brought some appetizers.
e) Channel has designed the clothes.
f) They placed a modern armchair on the stage yesterday morning.
g) Someone cleans the swimming pool every day.
h) They hired some models from an important agency.
i) The group will play their most popular song today.
j) They will record the video clip of “Fury”, Dave Hart’s new song.
k) Someone drove Dave Hart to London yesterday evening.
l) They will check the microphone before starting with the shooting.
m) Dave always drinks some hot tea before singing.
n) A masseur has given Dave a massage a few minutes ago.
o) Music magazines interviewed Dave Hart as soon as he arrived.
p) Dave signs many autographs every day.
q) Dave will visit a children hospital tomorrow morning.
r) The Prime Minister has received Hart in Downing Street today.
s) Some fans stole Dave’s scarf at the airport.
t) A reporter will write an article about the event.
When can we omit the agent?
a) This TV has been manufactured by Phillips.
b) My wallet was stolen by someone.
c) The book has been translated by translators.
d) The room is cleaned by a maid.
e) “Lavender Mist” was painted by Jackson
Pollock.
f) The MacBook Air was developed by Apple.
g) The last goal was scored by Leo Messi.
i) A delicious cake was baked by the chef.
j) A vase has been broken by a visitor.
k) The name “Adidas” was invented by Adi
Dasler
l) Millions of trainers are sold every year by