The present

The verb forms are the present, the past and the past participle.

begin, began, begun - zaczynać

The present

I begin to play every day.
Zaczynam grać codziennie.

The past

I began to play yesterday.
Zacząłem grać wczoraj.

The past participle

She hasn't begun to study yet.
Ona nie zaczęła się jeszcze uczyć.