Usages of εσύ
Εσύ μιλάς αγγλικά ή ελληνικά;
Do you speak English or Greek?
Εγώ μιλάω αγγλικά και εσύ μιλάς πολύ καλά.
I speak English and you speak very well.
Elon.io is an online learning platform
We have an entire course teaching Greek grammar and vocabulary.