Verbs without subject are very popular in everyday Polish. They help us avoid pointing at the doer or expected doer of the action which sometimes result the goal not being achieved 😉 If your wife/husband/mum says ” Trzeba posprzątać pokój” she probably means ” You have to clean your room” but you can understand it ” One has to clean the room” and you can wait for her to do it. So they are quite useful!
Time for the exercise!
Transform the verbs to avoid using any subject.