The Impersonal Pronoun.
The Impersonal Pronoun It is used in the following way.
1. To denote something without life.
# This bolt has got stuck. It won't open.
# The weather is unusually fine, and it is likely to continue.
# That road was made five years ago. It winds in many bends up the mountain.
2. To denote animals; especially lower ones and insects.
# Do you see that fly on the sugar? What is it doing?
# The Jackal is a cowardly creature; it slinks out of your way.
# That crow is making a horrible noise. Just pelt it and it will fly off.
3. It is sometimes used for a child; especially we don’t know whether it is a boy or a girl.
# That child is very peevish; it hardly ever stops crying.
# Have you seen the Herath’s baby? It’s a very pretty child.
# Do you hear a weeping of a kid? Who’s it?
4. It often has the meaning of the person or the thing talked of or thought of.
# Who is it knocking at the door? (It is the baker.)
# Well, what is it you want? (Or Well, what is it?)
# Who’s that talking? It was me. Don’t say It was me, but It was I.
5. In an indefinite way, as an introductory particle.
# It never rains but it pours.
# It’s going to be a fine day, I do believe.
# It’s a good thing you are coming too.
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