Czasy angielskie - Present Perfect Simple - Budowa

I have worked for this firm for two years.
Pracuję dla tej firmy od dwóch lat.

You have worked for this firm for two years.
He has worked for this firm for two years.
She has worked for this firm for two years.

We have worked for this firm for two years.
You have worked for this firm for two years.
They have worked for this firm for two years.

Have you done your homework yet?
Czy już odrobiłeś swoją pracę domową?

Has he done your homework yet?

What has he done yet?
Co on już zrobił?