people work in the lot on saturday proper noun or common noun

people common

Saturday proper
lot common

If this is third grade grammar, may I suggest that you get started early in writing sentences properly. First grade would have been better but third grade isn't too late to start. Start all sentences with a capital letter. End a sentence with a period. Capitalize S as in days of the week (Saturday). Using a computer is no excuse for being sloppy. I'm old enough to know better but I still use poor grammar. In my case its ignorance. You're just getting started in life. Learn to do it right.