For e Since

Costumamos usar FOR e SINCE quando falamos sobre o tempo, mas vocês sabem quando optar por um ou por outro?

We often use FOR and SINCE when talking about time.

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A period is a duration of time, for example:
10 minutes
3 weeks
5 years

FOR means – from the beginning of the period till the end of the period. FOR can be used with all tenses
A point is a precise moment in time, for example:
6 o’clock
13th September

➡ SINCE means – from a point in the past until now.

He has lived in Paris for a long time. I have worked in this factory for ten years.
He has been working since he arrived.
I have lived in London since my childhood.