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I regret not studying harder for my exams last year.
WISH
I _______ harder for my exams last year.
wish I had studied
(Expresses past regret using "wish" + past perfect )
It was a mistake for you to leave your keys in the car.
SHOULD
You _______ your keys in the car.
should not have left
(The modal structure "shouldn't have + past participle" is used to criticize a past action or express regret about something that happened)
"Don't touch the wet paint, children!" said the teacher.
WARNED
The teacher _______ the wet paint
warned the children not to
warned the children against touching
(The reporting verb "warn" takes either standard object + negative infinitive ("warned someone not to do something") or object + preposition + gerund ("warned someone against doing something)
I really admire my grandfather because he never gives up.
LOOK
I really _______ my grandfather because he never gives up.
look up to
(The phrasal verb 'look up to' means to admire and respect someone, which perfectly matches the meaning of 'admire' in the original sentence)
They painted our house last week.
HAD
We _______ last week.
had our house painted
(causative structure "have + object + past participle" to show an action done for the subject by someone else)
Driving a car on the left side of the road felt strange to the American tourist.
USED
The American tourist was _______ on the left side of the road.
not used to driving
(The structure "be + used to + gerund" means to be accustomed to something. The negation "not" shows it was strange or unfamiliar)
I think you should ask your manager for advice on this matter.
WERE
If _______ ask my manager for advice on this matter
I were you I would
(Uses a second conditional structure ("If I were you, I would...") to give advice)
I recommend checking the flight status before leaving for the airport.
HAD
You _______ the flight status before leaving for the airport.
had better check
Uses the strong recommendation idiom "had better + base verb" to give advice.
She started learning the piano five years ago.
BEEN
She __________ for five years.
has been playing the piano
(Connects a past action continuing into the present using the present perfect continuous tense)
I am certain that Matthew didn't break the vase on purpose.
CANNOT
Matthew _______ the vase on purpose.
cannot have broken
(Expresses a negative deduction about a past event using the perfect modal "cannot/can't have + past participle")
I find it difficult to speak in public because I am shy.
DIFFICULTY
I _______ in public because I am shy
have difficulty (in) speaking
(The fixed expression "have difficulty" is followed directly by a gerund (-ing) form)
They are building a new sports complex near the city center.
BEING
A new sports complex _______ near the city center
is being built
Changes an active sentence in the present continuous tense into the present continuous passive voice ("is/are + being + past participle").
You won't pass the test unless you study every day.
LONG
You will pass the test _______ study every day.
as long as you
("As long as" is a conditional linker meaning "on condition that" or "provided that".)
If you don't arrive on time, we will leave without you.
UNLESS
We will leave without you _______ on time.
unless you arrive
(The conditional conjunction "unless" means "if... not", changing the negative clause into an affirmative one)
Jack is the fastest runner in our school track team.
RUNS
Nobody in our school track team [_______] Jack.
runs as fast as
(Transforms a superlative adjective ("the fastest") into a comparative structure of equality using "as + adverb + as" in a negative context)
People believe that the ancient temple was built by aliens.
BELIEVED
The ancient temple [_______] built by aliens
is believed to have been
This uses the passive reporting structure. "People believe that X was built" transforms to "X is believed to have been + past participle" to refer to a past action in a passive context.
It’s not necessary for you to bring a jacket to the party.
HAVE
You _______ bring a jacket to the party.
DO NOT HAVE TO
(Expresses a lack of obligation in the present using "don't have to" + base verb)
The book was so boring that I couldn't finish reading it.
SUCH
It was _______ that I couldn't finish reading it.
such a boring book
(The structure "such + a/an + adjective + countable singular noun" is used to emphasize a quality, mirroring the "so + adjective" construction)
When did you first meet your best friend?
KOWN
How long [_______] your best friend?
have you known
Changes a past simple question about a specific point in time ("When did you meet...?") into a present perfect question asking about duration ("How long have you known...?").
I don't have a car, so I can't give you a lift to the station.
WOULD
If I had a car, I [_______] a lift to the station
would give you
The second conditional (If + past simple, would + base verb) is used to describe hypothetical or imaginary situations in the present or future and their imagined results.
People say that the local restaurant serves the best seafood in town.
SUPPOSED
The local restaurant _______ the best seafood in town.
is supposed to serve
(personal passive structure "subject + is supposed to + infinitive" to report general beliefs)
The price of food has risen sharply this month.
BEEN
There _______ sharp rise in the price of food this month.
has been a
(Transforms a verb-adverb structure ("has risen sharply") into a "there is/are" structure with an adjective-noun pairing ("a sharp rise").
You are not allowed to use your mobile phones during the exam.
MUST
You _______ mobile phones during the exam
must not use your
(Expresses a strict prohibition using the negative modal verb "must not / mustn't")
She left the house early so that she could catch the first train.
ORDER
She left the house early [_______] the first train
in order to catch
"In order to" + base verb is a formal linker of purpose that replaces "so that" + subject + modal verb, maintaining the exact same meaning.
"Whose bag is this?" asked the teacher.
BELONGED
The teacher wanted to know _______ to.
who that bag belonged
(Indirect questions in reported speech use statement word order. The phrase "belong to" is used to show possession, and "this" shifts to "that")
We didn't go to the beach because it rained heavily all afternoon.
PREVENTED
The heavy rain _______ to the beach.
prevented us from going
(The verb "prevent" follows the fixed pattern: prevent + object + from + gerund (-ing).
I'm sure that John left his keys at the office.
MUST
John _______ his keys at the office.
must have left
('Must have + past participle' is used to express a strong logical deduction or near certainty about a past action based on present evidence)
The flight was cancelled because of the thick fog.
DUE
The flight was cancelled [_______] fog.
due to the thick
'Due to' is a formal prepositional phrase meaning 'because of'. It must be followed by a noun phrase ('the thick fog'), not a full clause.