what is infinitive(infinitive-phrase: infinitive-kinds)

Infinitive: The base form of the verb is called infinitive. “OR “the verb without(s, es, ies, ed and d) is called infinitive. Infinitives can be used as nounsadjectives, or adverbs. Look at these examples:

Example of infinitive:

  • To speak
  • To run
  • To walk
  • To cook
  • To walk
  • To understand
  • To make
  • To see

 Examples of infinitive within the sentences.  

  • There’s too much sugar to put in this bowl.
  • I had too many books to carry.
  • She asked me how to use the washing machine.
  • Do you understand what to do?
  • Tell me when to press the button.
  • I’ve forgotten where to put this little screw.
  • I’m not sure I know who to call.

There are two kinds of infinitives ‘full infinitive’ and ‘bare infinitive’

1.full infinitive

To with first form of the verb is called full infinitive.

  • To speak
  • To run
  • To walk
  • To cook
  • To walk

2.Bare Infinitives

When an infinitive(base of form of the verb) is used without the marker to it is called a bare infinitive. 

Uses of the bare infinitive

The infinitive is used without to after certain verbs like bid, let, make, see, hear, need, dare etc.

we use infinitive without “To” after modal auxiliary verbs (will, should, would, can, could, May, might, and must)


  • she can speak English.
  • You must go to school.
  • He will explicate everything for you.
  • They should learn English.
  • We may go to school.

Usages of infinitive with to

1) Verb+infinitive:

Verb with infinitive is used to show purpose/aim of an action in the sentence. 


  • She wanted to delude him.
  • They obliged him to sign the agreement.
  • She came to collect her toys.
  • The three bears went to find firewood.
  • I am calling to ask you about dad.
  • You sister has gone to finish her homework.

2) Adjective+infinitive:

Adjective with infinitive  is used to show reaction and feeling.


  • I am glad to see you.
  • He is ready to fight with them.
  • This soup is too hot to eat.
  • She was too tired to work.
  • He arrived too late to see the actors.
  • I’ve had enough food to eat.
  • She’s old enough to make up her own mind.
  • There isn’t enough snow to ski on.
  • You’re not old enough to have grand-children!


Noun with infinitive is used to show the purpose of a noun in the sentence.


  • we need a mentor to guide us.
  • Do not use bad sentences to damage any one’s reputation.
  • I have a pen to write.
  • We use weapons to extricate the felons.
  • The children need a garden to play in.
  • I would like a sandwich to eat.
  • I don’t have anything to wear.
  • Would you like something to drink?

4. Infinitive used as subject of the sentence.

  • To be rich is liked.
  • To win the game is my choice.
  • To know her is to love her.
  • To visit the Grand Canyon is my life-long dream.
  • To understand statistics, that is our aim.

Fill in the blanks with the correct answer.

  1. We have some cake________. (eat, to eat, eaten)
  2. Here are some papers________. (to use, use, used)
  3. We use gun _________the felons. (kill, to kill, killed)
  4. The felon _____________to escape. (tried, try, trying)
  5. We should have intimacy ___________ relation. (keep, to keep, kept)
  6. Muslims’ enemies’ ___________ to make dull the new generation of Muslims. (want, to want, wanted)
  7. We need a mentor to __________ us. (guide, guided, to guide)
  8. He forced him to __________ the agreement. (to sign, sign, signed)
  9. We use force to _______________ the crimes. (finish, to finish, finished)
  10. He comes to center _______________his speaking. (to improve, improve, improved)

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