than, then
Than means "in comparison with". Example: He is bigger than me.
Then means "next". Example: After going home, he then started his assignment.
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their, there, they're
Their is a form of "they" that shows ownership. Example: Their flowers are on the table.
There describes where something is. Example: The flowers are there on the table.
They're is a short form of "they are". Example: They're going to buy flowers.
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threw, through
Threw is the past tense of throw. Example: He threw the ball over the fence.
Through means from "end to end". Example: We drove through the tunnel.
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to, too, two
To means "in the direction of". Example: He went to the store.
Too means "also". Example: He went to the store, too.
Two is a number. Example: Two of my friends went to the store.
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weather, whether
Weather means "conditions outdoors". Example: The weather is terrible.
Whether is an expression of choice between two options. Example: I do not know whether I will stay home or go to school.
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your, you're
Your is a form of "you" that shows ownership. Example: Your car is new.
You're is a short form of "your are". Example: You're going to the store .