Hi, i have several questions
1) What does μπορεί mean?
2) i would like to know why the verb for περπατάει for a another person would change into περπατήσει? I don't know if it has anything to do with the verb I mentioned above.
Αυτός μπορεί να κολυμπήσει/ Αυτός μπορεί να περπατήσει.
3) What does φάει mean?
Αυτός δεν μπορεί να φάει στο βιβλιοθήκη;
4) What is δουν?
Αυτοί δεν μπορούν να δουν;
5) What is να παρώ?
Μπορώ να παρώ το τρένο;
Sorry for the questions but I want to perfect my Greek. I looked up the words in the dictionary but I have a feeling that those words change with the verb.