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Key points and difficulties
1. Present perfect
have(has) +past participle
e.g. We have studied here for three years/ since 2013.
2. FOR + a period of time (four days/two years)
3. SINCE + the start of the period (Tuesday/2013)
Language analysis
Form Meaning Pronunciationhave(has)+past participle
e.g. have(has) finished
1. Positive and negative:
I/You have(not) finished.
He/She/It has(not) finished.
We/You/They have(not)finished.
2. Question and answer:
Have I/you finished?
Yes, you/I have.
No, you/I have not.
Has he/she/it finished?
Yes, he/she/it has.
No, he/she/it has not.
Have we/you/they finished?
Yes, you/we/they have.
No, you/we/they have not.
have not = haven’t
has not = hasn’t
since
for The present perfect tense has a number of uses.
1. We use it to talk about experience.
I’ve worked in 6 different countries.
Have you ever been to Australia?