Level: beginner

Verbs with to-infinitives

We use the to-infinitive after certain verbs (verbs followed by to-infinitive), particularly verbs of thinking and feeling:

choose
decide
expect
forget
hate
hope
intend
learn
like
love
mean
plan
prefer
remember
want
would like/love

They decided to start a business together.
Remember to turn the lights off.

and verbs of saying:

agree promise refuse threaten

We agreed to meet at the cinema.
Promise to call me every day.

Some verbs are followed by a direct object and then the to-infinitive:

advise
ask
encourage
expect
intend
invite
order
persuade
remind
tell
want
warn
would like/love
would prefer


 

He encouraged his friends to vote for him.
Remind me to give Julia a call.

Verbs with to-infinitive 1

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Verbs with to-infinitive 2

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Infinitive of purpose

We also use the to-infinitive to express purpose (to answer why?):

He bought some flowers to give to his wife.
He locked the door to keep everyone out.

We can also express purpose with in order to and in order not to:

We started our journey early in order to avoid the traffic.
They spoke quietly in order not to wake the children.

or so as to and so as not to:

We started our journey early so as to avoid the traffic.
They spoke quietly so as not to wake the children.

Infinitive of purpose 1

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Infinitive of purpose 2

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Level: intermediate

Adjectives with to-infinitives

We use the to-infinitive after certain adjectives:

able
unable
anxious
due
eager
keen
likely
unlikely
ready
prepared
willing
unwilling

Unfortunately, I was unable to work for over a week.
I'm really tired. I'm ready to go to bed.

Sometimes the to-infinitive gives a reason for the adjective:

amazed
delighted
disappointed
glad
happy
pleased
proud
relieved
sad
sorry
surprised
unhappy

We were happy to come to the end of our journey.
(= We were happy because we had come to the end of our journey.)
John was surprised to see me.
(= He was surprised because he saw me.)

We often use it + be followed by an adjective to give opinions:

clever
difficult
easy
foolish
hard
kind
nice
possible
impossible
right
wrong
silly

It's easy to play the piano, but it's very difficult to play well.
He spoke so quickly that it was impossible to understand him.

We use the to-infinitive with these adjectives to give opinions about people:

clever
foolish
kind
nice
right
wrong
silly
 

She was right to complain about that hotel.
You were clever to find the answer so quickly.

We use the preposition for to show who these adjectives refer to:

difficult easy hard possible impossible

It was difficult for us to hear what she was saying.
It is easy for you to criticise other people.

With the other adjectives, we use the preposition of:

It's kind of you to help.
It would be silly of him to spend all his money.

Adjectives with to-infinitive 1

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Adjectives with to-infinitive 2

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Level: advanced

Nouns with to-infinitives

We use the to-infinitive as a postmodifier (see noun phrases) after abstract nouns like:

ability
attempt
chance
desire
failure
need
opportunity
refusal
wish

They gave him an opportunity to escape.
He was annoyed by her refusal to answer.
I have no desire to be rich.
There is no need to shout.

We often use the to-infinitive as a postmodifier after indefinite pronouns:

When I am travelling I always take something to read.
I was all alone. I had no one to talk to.
There is hardly anything to do in most of these small towns.

Nouns with to-infinitive 1

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Nouns with to-infinitive 2

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Comments

Thank you. Also could you please explain the difference between to catch a view and to catch a sight ? For example if I want to say : I had to stand in the balcony to catch the whole view/ sight of the parade. Thank you

Hi Widescreen,

As far as I know, 'catch a view' and 'catch a sight' are not used in standard British English. You can 'catch a glimpse' or 'catch sight' of something (follow the link to see the definition and examples), but not 'catch view' or 'catch a view'.

I'd probably say 'I had to stand on the balcony to see all of the parade', though of course it depends on context.

All the best,
Kirk
The LearnEnglish Team

Dear Sir
Is it right to say?1. Neither my friend nor my brothers were present. or was present but not were present 2. Neither my brothers nor my friend was present. or were
present.
Please let me know which ones are correct.
Thank you.

Hello Andrew international,

You can find the answer to this in our grammar section with a little search. It's very helpful to us if you can first try to find the answer yourself before posting questions as it enables us to focus on those questions which do not already have an answer on our pages. This page is on an entirely different topic (to + infinitive); the relevant page for your topic, with the information you require, is here.

 

Best wishes,

Peter

The LearnEnglish Team

Hello,

It is said that we have such a rule: If an infinitive(intransitive) comes after a noun and that noun is logical object of the infinitive, a prepostion is required:

1. The children need a garden to play in. (followed the rule)
2. There is not enough snow to ski on. (followed the rule)

3. It is difficult to find a place to park. (why not "park in" here? )

Hello sword_yao,

Neither Peter nor I are familiar with this rule. It seems to work in many cases, but not with all. You've already found one counter-example ('place') and the word 'time' (e.g. 'There isn't enough time to go skiing') is another.

All the best,
Kirk
The LearnEnglish Team

I'm wondering whether it is correct to use "are" as a verb for "I". For example

"Neither Peter nor I are familiar with this rule."

Shouldn't be "Neither Peter nor I am familiar with this rule"?

Hello Otevia,

When 'neither' and 'nor' are used like this, we commonly use a singular verb after them, even though there are really two subjects ('Peter' and 'I'). So yes, 'am' (or even 'is') is correct. That said, 'are' is also possible (since logically the subject is plural), especially in a less formal context.

All the best,
Kirk
The LearnEnglish Team

thanks a lot. I do need to realize existence of exceptions.

Thank you very much!!

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