This is
another one of my pet peeves. As more and more people rely on spell checkers
instead of editors, this type of mistake is becoming commonplace.
It can be
confusing, but it really is quite simple.
Here is the basic rule:
Use it’s
(with an apostrophe) when you mean it is or it has. In this case, the word it’s is a contraction, like isn’t or won’t.
Examples
It’s a
beautiful day.
I like this
movie because it’s funny.
It's been a long winter.
It's been a long winter.
Use its
(without an apostrophe) when you mean belonging to it. In this case, the word its is a pronoun
(possessive pronoun to be exact), like the word his or her.
Examples
The cat
licked its fur.
Nebraska is
known for its friendly people.
Hard work
has its rewards.
If it helps,
you can ask yourself this question: Can I substitute his or her for its in the
sentence (even though it may not quite make sense).
For
instance, although it doesn't totally make sense, you could say
The cat
licked her fur.
Nebraska is
known for his friendly people.
Hard work
has her rewards.
But it would
be ridiculous to say:
His a
beautiful day.
I like this
movie because her funny.
His been a long winter.
His been a long winter.
The usage of its can be especially confusing because if you were to use the noun instead of
its, you would use an apostrophe: “the cat’s fur,” “Nebraska’s friendly people,”
“hard work’s rewards.” But think again
of the words his and her, or other possessive pronouns: my, your, our, their.
None of them use an apostrophe. Because
its is a possessive pronoun, it does not have an apostrophe either.