Already and Yet

Already means that something happened earlier than we expected. With Present Perfect already usually goes after have or has and before the main verb.

Examples

- We've already had our breakfast.

- When are you going to do your homework?
- But I've already done it!

- Do you want a cup of coffee?
- No, thanks. I've already had one."
Yet means that something that we expected has happened or hasn't happened. We usually put it at the end of a sentence.

Examples

- Has the post arrived yet?

- Have you done your homework?
- Not yet.

- Haven't you got ready yet? Look at the time!