Unit 12. For and since. When ... ? and How long ... ?
Unit 12; Part A
![]() We use for + a period of time (two hours. six weeks etc.) We use since + the start of a period (8 o'clock. Monday. 1999 etc.) ![]() |
• They've been married (for) ten years. (with or without for)
• They haven't had a holiday for ten years. (you must use for)
We do not use for + all ... (all day / all my life etc.):
• I've lived here all my life. (not for all my life)
Unit 12; Part C

• It's two years since I last saw Joe. (= I haven't seen Joe for two years)
• It's ages since we went to the cinema. (= We haven't been to the cinema for ages)
You can ask 'How long is it since ... ?':
• How long is it since you last saw Joe? (= When did you last see Joe?)
• How long is it since Mrs Hill died? (= When did Mrs Hill die?)
You can also say 'It's been (= It has been) ... since ... ':
• It's been two years since I last saw Joe.
Exercises
![]() | Unit 11 Unit 12 Unit 13 | ![]() |
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