What's the difference between to, too, and two? It's not too difficult to use them, once you take the time to learn what they mean - and do some practicing too.


To

To has two functions. First, as a preposition, in which case it always precedes a noun.

I'm going to the store

He went to Italy

This belongs to David

Secondly, to indicates an infinitive when it precedes a verb.

I need to study

We want to help

He's going to eat


Too

Too also has two uses. First, as a synonym for "also":

Can I go too?

He went to France too

I think that's Paul's book too

Secondly, too means excessively when it precedes an adjective or adverb.

I'm too tired

He's walking too quickly

I ate too much


Two

Two is a number.

One, two, three...

I have two cars

She ate two pieces of pie


The Bottom Line

The confusion between to, too, and two occurs because the three words are pronounced identically.

One: If you're able to replace the word with "also" or "excessively/too much," use too. Two: If the word is a number, use two. Otherwise, you'll want to use to.