Many writers confuse 'to' vs. 'too'.
• To is a preposition with several meanings, including “toward” and “until.”
• Too is an adverb that can mean “excessively” or “also.”
• Just to be clear: two is pronounced the same as 'to' and 'too', but it can’t be used instead of either of them because it’s a number.
When to Use TO
• It can be used to show direction: I’m going to the store.
• It can also be used as an infinitive verb: I don’t have any plans for the weekend, I want to take a rest.
When to Use TOO
When it comes to “too”, we use this word when modifying other words:
• My dog was trying to sleep, but it was too hot.
• I wanted to buy this shirt, but it was too expensive.
• She understands if you are too busy to go to her party.
To vs. Too Examples
• I don’ t want to go home yet.
• Would you like to play tennis with me?
• “Nice to talk to you.” – “Nice to talk to you too.”
• Happy New Year to you, too.
• That game is difficult too.