He is good at speaking English.

I am thinking of learning Greek.

The Slavic languages are one of the major language groups in Europe.

I am learning Modern Greek.

He is learning Ancient Greek language.

He likes to learn new words.

He is good at speaking Spanish.

He can speak Japanese fluently.

Slavic culture is very rich and attractive.

Aorist is one of the tenses in the grammar of languages such as Greek and Slavic.