An infinitive is the base form of the verb but it has different functions. It sometimes works like a noun and is used in the place of subject. It can be used as the direct object of the verb, as an adjective or adverb.
Let’s see some examples.
To walk early in the morning is good for health. One can get rid of various diseases by walking regularly. It is better to walk on the riverside or in the garden. The fresh year and the green plants are good for body and mind. Many people work early in the morning to keep body and mind healthy and fresh.
Here,
- To walk
- To keep
- These are infinitives.
Functions of infinitives:
- Subject of a verb: To jump is fun.
- Direct object of the verb: I like to swim.
- As an adjective: she had a suggestion to offer.
- As an adverb: He cal to warn her.
- As an object of a transitive verb: we decided to travel there at night.