1 Some verbs are followed by the to-infinitive:

I decided to go home as soon as possible.
We all wanted to have more English classes.

Common verbs followed by the to-infinitive are:

Verbs of thinking and feeling:

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

Verbs of saying:

  • agree
  • promise
  • refuse

Other common verbs are:

  • arrange
  • attempt
  • fail
  • help
  • manage
  • tend
  • try
  • want

2 Some verbs are followed by a noun and the to-infinitive:

She asked him to send her a text message.
He wanted all his friends to come to his party.

Common verbs with this pattern are:

Verbs of saying:

  • advise
  • ask
  • encourage
  • invite
  • order
  • persuade
  • remind
  • tell
  • warn *

*Note: The verb warn is normally used with not
The police warned everyone not to drive too fast.

Verbs of wanting or liking:

  • expect
  • intend
  • would
  • prefer
  • want
  • would like

Other verbs with this pattern are:

  • allow
  • enable
  • force
  • get
  • teach

3. Passive infinitive

Many of these verbs are sometimes followed by a passive infinitive
(to be + past participle):

I expected to be met when I arrived at the station.
They wanted to be told if anything happened.
I don’t like driving myself. I prefer to be driven.

 

Activity 1:

Match the 'to infinitive' clauses to the sentence beginnings.

 

Activity 2:

Match the 'to infinitive' clauses to the sentence beginnings.

 

Activity 3:

Match the 'to infinitive' clauses to the sentence beginnings.

Section: 

Comments

Hello,

Would you please explain to me how and when to use 'to be' in a sentence? I often see it in sentences but not sure what does it really mean.

Hello Abidani,

It might help to think that 'to be' is an infinitive, and so, for example, as is explained on this page, it can be used after verbs like 'want' that can be followed by infinitives (e.g. 'I want to be a poet'). Infinitives are also commonly used to talk about purpose (e.g. 'I went to the market to buy some eggs').

There are so many different ways 'to be' and other infinitives can be used in a sentence that I don't think anyone could explain them all! If you find any specific examples you want ask us about, feel free to do so.

All the best,
Kirk
The LearnEnglish Team

Thank you, Kirk, for your reply.

I would be grateful if you make me clear about the use of specific 'to be' (not other infinitives or am/is.....) in sentences. For example:

''Waste water is sent to the water treatment plant to be processed.''

My query is
1) what does this sentence mean?
2) what if I don't use to be as such instead write '......................plant to process'?
3) Is it better to use such form in sentences to make them more formal or it has no impact?

Thanks again :)

Hello Abidani,

The infinitive in your example shows purpose - it tells us why the waste water was sent to the plant. You can replace 'to be processed' with 'in order to be processed' or 'so that it could be processed' without fundamentally changing the meaning. The key here is that it is an infinitive; 'be' is included because it is a passive form (to process = an infinitive; to be processed = a passive infinitive).

You can read more about this and other uses of the infinitive on this page.

You cannot use the formulation you have in your second question. You could say 'to the plant for processing', using a preposition and a gerund.

 

Best wishes,

Peter

The LearnEnglish Team

Thank you peter for the nice clarification and thanks to the @LearnEnglish team as well.

Best regards

Hi Teacher,
How to Improve English Grammar? Tell me some easy tips. Recently I prepare from this site. can you have something more to add in this Guide.

Hello Mahi69,

I'd recommend you read our Frequently asked questions page, which has advice on how to get the most out of our site. You're welcome to study this Grammar section and our Quick Grammar to improve your grammar, but I'd also recommend you try a series like Elementary Podcasts, where you will see grammar in context and also learn vocabulary, improve your listening, etc.

All the best,
Kirk
The LearnEnglish Team

Hello trickard1000,

I'm afraid there is no simple answer to this question. The page you refer to looks useful, but I think you'll find that it won't help you in all situations. Neither will our page, for that matter! Unfortunately there is no easy or short set of rules that will tell you what to do in every situation.

Sorry!

All the best,
Kirk
The LearnEnglish Team

Hello sir
Thank you so much for your previous explanation, it is always very very helpful to me and encourage to study English more. In that respect, I want to ask a question about using to +infinitive.
1) We expected to be late.
Can I write this sentence mentioned below?
2) We expected, it would be late.
Do two sentences have same meaning?
If the two sentences have same meaning could you please explain to me why we leave out, would, in first one? And in what kind of situations we can use, to be, in a sentence.
Is " to be " a abstract fom of the "would be" in first one?
Thanks a lot sir.

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