... because I was tired

Grammar notes

Because Gives the Reason (Conjunction: Because)

Use because to explain the reason for something.

It answers the quiet question: Why?

This word is small, but it carries the whole reason in its backpack.

• Example: I stayed at home because I was tired.
• Example: She wore boots because it was wet.

Quick Rule

• main idea + because + reason
• use it when you want to explain why

Think of because as your little reason word.