To vs Too vs Two
What's the difference?
Three tiny words that sound the same and get swapped constantly. Each one has a distinct job, and "to" is the safe default for most sentences.
Quick answer
Two is the number (2). Too means "also" or "excessively." To is the default for everything else — direction (to the store) and before a verb (to run).
Compared side by side
(preposition / infinitive marker) shows direction or purpose; also used before a verb.
- “I'm going to work.”
- “I want to help.”
- “Give the book to her.”
(adverb) also, or more than enough.
- “Can I come too?”
- “It's too hot in here.”
- “She was too tired to cook.”
(number) the number 2.
- “I have two brothers.”
- “Give me two minutes.”
- “They split the bill two ways.”
How to remember it
Too has an extra "o" — think of it as "more than enough" (too much). Two starts like twin and twelve, all about the number.
Frequently asked
Which one is the default?
"To" is by far the most common — use it for direction ("to the store") and before verbs ("to run"). Only use "too" for "also/excessively" and "two" for the number.
How do I test for "too"?
Try replacing it with "also" or "excessively." If either fits, you want too. "Can I come also?" works, so "Can I come too?" is correct.