The present active participle is formed by adding نده (-ande) to the present stem of a verb. If the present stem ends in a vowel, then the epenthetic consonant ی (-y-) is added to resolve vowel hiatus.

Infinitive Present stem Present participle
گفتن
goftan
to say, tell
گو
gu
گوینده
guyande
speaker
دیدن
didan
to see
بین
bin
بیننده
binande
viewer; spectator
شنیدن
šenidan
to hear
شنو
šenav
شنونده
šenavande
listener; audience
راندن
rândan
to drive
ران
rân
راننده
rânande
driver
بردن
bordan
to win
بر
bar
برنده
barande
winner; winning
دویدن
davidan
to run
دو
dav
دونده
davande
runner
شستن
šostan
to wash
شو
šu
شوینده
šuyande
washer; detergent
آمدن
(âmadan)
to come
آ
â
آینده
yande)
coming, next; future

Apocopated present participle

The suffix “-ande” is often omitted in compound verbs resulting in an apocopated participle:

Verb Present Stem Derivation
بازی کردن
(bâzi kardan)
to play
بازی+کن
(bâzi+kon)
بازیکن
(bâzikon)
player