Tuesday, 29 October 2013

'For' and 'Since' with Present Perfect

We use Present Perfect tense to talk about action which started in the past and continues up to the present.

I have had this computer for about a year. 
How long have you been at this school? 
I haven't seen Julia since September.

We use 'for' with a period of time, for example: a few days, half an hour, two years.
I've been at school since 8.30 a.m.
We use 'since' with the time when the action started, for example: last year, June 8, I met you.
I've been at school for 5 hours.

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