Present Simple - every day / week / month / year, usually, often, always, rarely, never, sometimes, in the morning / evening, afternoon, at night, on Mondays
Past Simple - yesterday, last week, 2 days ago, then, when, in 1967
Present Continuous - now, at the moment, nowadays, at present, still
Past Continuous - while, when, as, at ... o`clock yesterday
Future Simple - tomorrow, tonight, next day / week / month / year, in two / three days, the day after tomorrow, next time