Uses Of It

It is a pronoun used for lifeless things and animals.

• I have bought a table; it is made of teakwood.
• The dog is ill; it should be taken to the hospital.

It is often used to refer to a young child. This is particularly common when the sex of the child is not mentioned.

• The baby cried because it was hungry.

It can be used to refer to some statement in the preceding clause.

• He created the trouble; and he knows it.
• He was telling a lie; and he knew it.

It can be used as impersonal pronoun.

• It is raining.
• It has been snowing for hours.

Note that it is also used in speaking of the weather or the time.

• It is fine weather now.
• It is time they started work.

It can be used to refer back to a collective noun when it is viewed as a single unit.

• The committee has decided to hold its next meeting on the 25th.
• The jury gave its verdict.

Note

We do not use it to refer back to a collective noun when it is used to refer to the separate members. Instead we use they.

• The committee were divided in their opinion. (NOT The committee were divided in its opinion.)

Note also the use of the plural verb.