Present Simple, Present Continuous, Future Simple, Past Simple,Present Simple, Present Continuous, Future Simple, Past Simple, Present Perfect сигналы к этим временам.

1. Present Simple - always, often, usually, never, every day\week\year, on Monday\Tuesday 2. Present Continues - now, at the moment, listen 3. Future - tomorrow, next week\month\year, the day after tomorrow, later, soon 4. Past Simple - yesterday, last day\week\year, two day ago 5. Present Perfect - by, by the time. by the end of the year, since, ever, never