We use (past simple; present simple; future simple) to talk about: Something that is true in the (past; present; future Examples: i live in London. The Earth is round. You`re twenty. Something that happens (right now; regulalry) or all the time in the (past; present; future). Examples: I go to school 6 days a week. Tom and Jim play football every Saturday. My mum usually bakes a cake for my birthday. Something that is (sometimes; always; never) true according to the scientific facts, habits, unchanging situations or general truths. Example: Mars is the Red planet. The human body contains 206 bones. Bears sleep in winter.