1. To, Too, Two:
* To (preposition): I went to the store.
* Too (adverb): It's too hot outside.
* Two (number): I have two cats.
2. There, Their, They're:
* There (adverb): The book is there on the table.
* Their (possessive pronoun): That's their car.
* They're (contraction of "they are"): They're going to the movies.
3. See, Sea:
* See (verb): I can see the ocean.
* Sea (noun): The sea is vast and blue.
4. Hear, Here:
* Hear (verb): I can hear the music.
* Here (adverb): Come here and sit down.
5. Write, Right:
* Write (verb): Please write me a letter.
* Right (adjective): That's the right answer.