GRAMMAR & STRUCTURE
Infinitives

Definition

An infinitive is the to + verb form of a verb.

Example

I like	to sing.
	infinitive

Explanation

An infinitive can be used --

as the object of a verb.
as the subject of a sentence.
to express purpose.
after certain adjectives. For example: glad to, happy to, afraid to, and lucky to.
after certain verbs or verb + noun / pronoun combinations. For example: expect, hope, plan, decide, promise, tell someone (to), remind someone (to), force someone (to), need someone (to), and want someone (to).
after certain expressions. For example: too, enough.
in the simple form ( without "to") with certain verbs. For example: see, feel, make, have, and let.
to express the negative, when "not" is placed before it.
in the past and passive forms.

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