present perfect
the present perfect it's a grammatical combination that it's use when an action hasn't finished yet, just finished, or we don't know when it happened
when we use present perfect, we put "ed" at the end of the verb.
for an afirmative sentence, we use "has" or "have"
for a negative sentence we use "haven't" or "hasn't"
examples
"i haven't finished"
"i just finished my homework" it recently happened, so we use the present perfect
"arthur has traveled to many countries"
click to edit
"i've been playing since 5 pm"
for the verb to be we use "been"
some of the key words
just
i've just passed my exam
yet
she hasn't finished yet
already
i've have already finished
we haven't stopped yet
never
she has never reached that part of the game
click to edit
recently
they have recently finished
structures
poitive
question
negative
"they haven't played" subject + have/has + played/past participle
"they have played" subject + have/has not + played/past participle
"have they played?" have/has + subject + past participle + ?