BlogGrammar RulesTo ‘to’ or not to ’too’: that is the question!

To ‘to’ or not to ’too’: that is the question!

Justin Cox
Administrator at The Writing Cooperative and Eater of Donuts
Published May 09, 2018

Getting tripped up on the differences between “to” and “too” happens often. When do you use a single “o” and when do you use two? While this is one of the most common grammar mistakes, the rule is easy to master.

Let’s start with the most common form of the word: “to”.

“To” is a preposition that modifies a noun or verb.


  • Are we going to the restaurant?
  • We paid for your meal to show our appreciation.
  • The kind gesture brought me to tears.
  • She handed the card to her parents.

When used with a base verb, “to” defines an infinitive verb.


  • I wanted to thank you for dinner.
  • He was going to be a cook someday.
  • She tried to run, but her knee wouldn’t function.
  • Do you need me to explain the grammar rule?

While there are many uses for “to”, only two exist for “too”. They are much easier to remember, too!

“Too” is an adverb that substitutes for “also”, or shows an excessive degree.


  • She is fast and strong, too.
  • He, too, wrote a book.
  • It’s time to have your cake and eat it, too.
  • The sauna is way too hot for me.

When used to substitute “also”, surround “too” with commas. The exception is when “too” is the final word in a sentence. When showing an excessive degree, “too” has no commas.

  1. Which Word To Use

Which Word To Use

Confused? That’s OK. Think of it this way: “to” is the default word, used in almost every situation. “Too” is only used in two specific instances. If “also” substitutes without changing the sentence’s meaning, or if you’re defining an extreme, you should use two “o”s. In every other situation, stick with one.

When in doubt, use ProWritingAid’s Grammar Check and you’ll be mastering the rule in no time.

Subscribe for writing hacks, special offers and free stuff
We will not share your details
Have you tried  ProWritingAid  yet? What are you waiting for? It's the best tool for making sure your copy is strong, clear, and error-free!
Justin Cox
Administrator at The Writing Cooperative and Eater of Donuts

Justin Cox is a writer, minister, and donut eater. His words are available online at Wired, Film School Rejects, The Writing Cooperative, The Coffeelicious, and more. Besides writing, Justin is an avid traveler and foodie. He lives in Orlando, Florida with his wife, Carla, and their dog, Mac. Connect with Justin on Twitter, Medium, or at

Black Friday Sale

Up to

50% off

Buy today and we'll donate $5 of your order to the Children's Literacy Charity.

Browse Offers
Ends Monday, November 30 at 11:59 PST