Present Perfect, Past Perfect ื-Present Perfect Continuous ืืืืจืืช 4 ืืืืืืช.
Form: Present Perfect
have/has + V3.
Form: Past Perfect
had + V3.
Form: Present Perfect Continuous
have/has been + V+ing.
Use: Present Perfect
ืคืขืืื ืฉืืชืืืื ืืขืืจ ืื ืืืขืช ืืืืื.
Use: Past Perfect
ืคืขืืื ืฉืืกืชืืืื ืืคื ื ืคืขืืื ืืืจืช ืืขืืจ.
since vs for
since + ื ืงืืืช ืืื; for + ืืฉื ืืื.
I have lived here ___ 2010.
since.
I have lived here ___ 5 years.
for.
She has just left.
just = ืืจืืข (Present Perfect).
Have you ever been to Paris?
ever = ืื-ืคืขื.
I haven't seen him yet.
yet = ืขืืืื (ืื).
He has already finished.
already = ืืืจ.
Past of 'go' (V3)
gone (have gone) ืื been (have been).
Past of 'see' (V3)
seen.
Past of 'eat' (V3)
eaten.
Past of 'write' (V3)
written.
Past of 'speak' (V3)
spoken.
Past of 'take' (V3)
taken.
Past of 'do' (V3)
done.
Past of 'be' (V3)
been.
When I arrived, the train ___. (already left)
had already left โ Past Perfect.
By next year, I ___ (graduate).
will have graduated โ Future Perfect.
She ___ (study) for 3 hours.
has been studying โ Present Perfect Continuous.
Difference: been to / gone to
been to = ืืืงืจืชื ืืืืจืชื; gone to = ืืื ืืขืืืื ืฉื.
I have been to Paris twice.
ืืืงืจืชื ืืคืจืื ืคืขืืืื.