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To is a preposition, indicating movement in the direction of. For example: My duck walked to the shops.
Too is an adverb, or modifier. It indicates "more than is desirable, allowed, or possible". For example: I ate too many jelly snakes, and felt terribly terribly sick. Too also means "in addition to; also", as in: I want the second bag of jelly snakes, too.
Two is a cardinal number, a counting word representing 2. The W in this word makes it quite different from to and too. It's related to the word twain (an archaic name for two — used in phrases such as Never the twain shall meet, which means "These two things are so different, they shall never be together".
How to remember the difference between to, too, and two
If you're referring to the number, then use two. Remember that two and twain are related, and both words contain the letter W.
For to and too, count the number of Os — the word that means excess or extra (too) has an extra O!
Unless you mean the number two or too (as in, for example, too much or extra or as well as, etc), then you probably want to.
Test your understanding of to, too, and two by filling in the blanks below with the correct version:
1. ___ be, or not ___ be, that is the question.
2. This question is number ___ in this test.
3. Daniel was worried he exercised ___ much at the gym today.
4. Like Daniel, Troy was worried, ___.
5. If you want ___ improve your vocabulary, you might want ___ check out Ultimate Vocabulary.
6. Ultimate Vocabulary not only works, it's good value, ___!
7. You can never know ___ many words!
8. When I was ___, I ate ___ many lollies and had ___ go ___ the dentist often.
1(a) To; (b) to
5(a) to; (b) to
8(a) two; (b) too; (c) to; (d) to
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