correct word for 'leave' or 'leaving'

hi guys
i am getting a bit bogged down with using the correct word for 'leave'. i have got
pozostawiać
opuscić
opuszczać
could i have a little guidance as to its usage please.
and i have a problem with został, som,e say 'be' 'get' and 'stay'

help needed

thanks

chaza

beginning with baby steps

to leave a place : wyjść, pójść (both perfective) the second is commonly used in questions of the time 'has he left yet?'

to leave (something somewhere) : zostawić / zostawiać (perfective form first cause that's the base form)

to be left, to remain : pozostawiać (most always imperfective)

to leave (abandon) sth : opuścić / opuszczać (again perfective first)

zostać is either stay (in a place) zostać w domu (stay at home) or become (with instrumental) zostać żołnierzem (to become a soldier)

Shoudn't be "pozostawać" ?

How much left? Ile (po)zostało?

Cinek

thanks for that explanation

chaza

there is also this construction - like say - został pochowany - he was burried (interred) but also został przysypany skałami - he got/was burried by/under rocks (say some caver/speleologist)