Persian verbs are classified into two main groups: simple verbs and compound verbs. Simple verbs have only one part which is the infinitive:

داشتن
dâshtan
to have
دادن
dâdan
to give
رفتن
raftan
to go
خواند
khwândan
to read; to sing

Compound verbs

A compound verb consists of an infinitive and one or more words that come before the infinitive. The words that precede the infinitive are called preverb:

Compound Verb Preverb
بر داشتن
bar dâshtan
to pick up
بر
bar
دوست داشتن
dust dâshtan
to like, to love
دوست
dust
دست بر داشتن
dast bar dâshtan
to desist
دست بر
dast bar
بازی کردن
bâzi kardan
to play
بازی
bâzi
به دست آوردن
be dast âvordan
to obtain
به دست
be dast

When a compound verb is going to be conjugated, the preverb sits aside and conjugational items are added to the infinitive:

بازی کردن
bâzi kardan
to play
به دست آوردن
be dast âvordan
to obtain
بازی کردم
bâzi kardam
I played
به دست آوردم
be dast âvordam
I obtained
بازی می‌کنم
bâzi mikonam
I play, I am playing
به دست می‌آورم
be dast miâvaram
I obtain, I am obtaining
بازی کرده‌ام
bâzi kardeam
I have played
به دست آورده‌ام
be dast âvordeam
I have obtained
بازی خواهم کرد
bâzi khwâham kard
I will play
به دست خواهم آورد
be dast khwâham âvord
I will obtain