How long......? We use "how long.....T to ask the time in the present perfect tense.
present perfect tense for 9 years
sińce r-A-\ NOW
łi-►
2000 2009
How long has he been a student?
He has been a student for nine years. He has been a student sińce 2000.
sińce: vVe use "sińce" when we say a point of time. for : We use “for” when we say the period of time.
sińce |
for | ||
1974 |
5 o’clock |
ten minutes |
four months |
Sunday |
Christmas |
an hour |
three years |
April |
I was born |
two days |
a long time |
9,h February |
lunchtime |
five weeks |
many years |