Mini lección de Dunya Martínez de Tau Formar con la diferencia entre «since» y «for» en inglés. Aprende inglés en Santa Coloma de Gramenet (Barcelona) con el mejor equipo docente.
For is normally used when we talk about a period of time that started at some point in the past, and still continues in the present. We specify the amount of time (how long):
I’ve been a teacher for more than 10 years.
- They’ve been married for 50 years!
- She’s been studying French for 6 months.
Since is used when we specify the starting point:
I’ve been a teacher since 1992.
- They’ve been married since 1969.
- She’s been studying French since November.
Note: SINCE and FOR are normally used with the present perfect or present perfect continuous. It is wrong to say:
– I knew her for two years.
– I know her since 2010.