FOR wird verwendet, wenn von einer ZEITSPANNE die Rede ist, während SINCE den (präziseren) ZEITPUNKT (z.B. das Jahr) nennt.


I haven't seen him FOR ages.

She's been living in Holland Park SINCE 1990.

SINCE when have you been a teetotaler?

They haven't spoken to us SINCE we got our Jaguar.

I've been waiting for her to ring up FOR over a week.

Things haven't been the same SINCE we won the National Lottery.