Fix all grammatical errors: perhaps when we are buying in the supermarket or other shops we are doing something bad, because we ask to assistant a bag o similar to carry at home this food or other things.
Perhaps when we are buying in the supermarket or other shops, we are doing something bad because we ask an assistant to carry a bag of similar to carry at home this food or other things.
Perhaps when we are buying in the supermarket or other shops, we are doing something bad because we ask an assistant a bag of similar to carry at home this food or other things.