Сделайте предложения с тремя временами Present Simp Present perfect Present continuous отрицательное утвердительное и вопросительное

presènt perfect I've a red car. I've not a red car .have you a red car .present continuous .I am waiting for my friends .I'm not waiting for my friends .are you waiting for your friends ?present simpleI work at the university every day except friday. I don't work at the university .do you work at the university ?