Infinitive of purpose

Infinitive of purpose

Do you know how and when to use an infinitive to talk about purpose? Test what you know with interactive exercises and read the explanation to help you.

Look at these examples to see how we use infinitives of purpose.

He went to the shops to buy some shoes.
I'm writing to ask for your help.
My father runs every day to keep healthy.

Try this exercise to test your grammar.

Read the explanation to learn more.

Grammar explanation

When we want to answer the question why?, we can use an infinitive of purpose. Most of the time, we use the to-infinitive.

Why do you have the LearnEnglish Grammar app?
To improve my grammar.

Why do we always eat at home?
We eat at home to save money.

Why do you have a bicycle?
I use it to go to work.

Why does she run every morning?
She runs to keep fit.

Do this exercise to test your grammar again.

Average: 4 (139 votes)

Submitted by SINENSI on Wed, 09/07/2025 - 13:43

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I need to do more practice to improve my English. 

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Submitted by MagnoXXI on Wed, 09/07/2025 - 00:40

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If you want to understand your listening in any language, you must to improve your vocabulary and speaking.

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Submitted by Meisampt on Sun, 25/05/2025 - 19:56

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You should listen more to improve your speaking, and read more to develop your writing skills.

Submitted by Sa Wan on Tue, 04/03/2025 - 06:16

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I study english diligently to improve my skills and secure a good job in the future.

Submitted by PN on Mon, 16/12/2024 - 02:19

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I have a question that might be not so related to this topic.

We say:

  1. She found guilty of stealing the money.
  2. The man pleaded guilty to manslaughter. (I take the reference from chambers dictionary with some word modification).

Why sometimes we use "of" and sometimes we use "to"? Can I replace the "to" with "of?"

Hello PN,

The key is the verbs used with the word 'guilty'. The forms are as follows:

be found guilty of a crime

plead guilty to a crime

Note 'found' is part of a passive phrase, so it should be 'She was found...' in your first example.

 

Peter

The LearnEnglish Team