PRESENT PERFECT
SIMPLE
CONTINUOUS
FORM
FORM
AFFERMATIVE FORM:
S + have/has + been + vb. + ing
ex: I have been driving all day.
AFFERMATIVE FORM:
S + have/has + past participle
ex: I've finished the report.
NEGATIVE FORM:
S + have/has + not + been + vb. + ing
ex: the radio hasn't been working for ages.
INTERROGATIVE FORM:
Have/has + S + been + vb + ing ?
ex: have you been waiting long?
USE
focus on the ACTION
Talking about the length of time something goes on for
ADVERBS
for years, for a long time etc...
NEGATIVE FORM:
S + have/has + not + past participle
ex: we haven't finished
INTERROGATIVE FORM:
Have/has + S + past participle ?
ex: Has she finisched?
USE
ADVERBS
still, already, just, not...yest, nerver/ever, for/since
talking about what happen in the past but it's important now
Indefinite past
undefinited action
focus on the RESULT