what is akarmak and sakarmak kriya & how to distingush it

akarmak kria is intransitive verb where thrre is not any object such as:-pria is playing.
sakarmak kria is transitive verv where any object is present such as :-pria is playing with a bat.
DUIKARMAK KRIA is the one in which two object are present such as :-I will play with pria batball..here pria and batbsll are objects.
hope it would work...