Since is used to indicate a period of time from a specific point in the past continuing up until the present. It is normally used with perfect tenses and can reference a precise moment like 9am or January 1st. Examples show since being used to talk about periods of time for actions that began in the past and continue to the present, such as "He has been here since 9am" or "I have lived in New York since my childhood."

1. SINCE FOR TIME

2. We often use since when talking about time: Past Now since + point A point is a precise moment in time, for example: 9 o'clock, 1st January, Monday. Since means "from a point in the past until now." Since is normally used with perfect tenses. We use SINCE + thestart of theperiod (Monday / 9 o`clock ) SinceMonday Monday

3. WHAT’S THE DIFFERENCE BETWEEN

5. He has been working since he arrived.

8. We`vebeenwaitingsince 9 o´clock (=from 9 o´clocktonow)

9. I`velived in Chicago since I was ten yearsold.