Present Perfect vs Past Simple
Mary has travelled/travelled since she graduated high school.
has travelled
She + to have
she had
she + to have
she has had
he ate
he + to eat
he has eaten
Before lunch, he has had/had a snack.
had
they + to study
they studied
they + to study
they have studied
we + to meet
we met
we + to meet
we have met
She was so happy that she has cried/cried with joy.
cried
we + to know
we knew
we + to know
we have known
they got
they + to get
they have gotten
Today is Sunday. Adam has run/ran early this morning.
has run
you + to take
you took
you + to take
you have taken
Max + to travel
Max travelled
Max + to travel
Max has travelled
She is now going to the zoo because she hasn't seen/did not see the elephants.
hasn't seen
I + to win
I won
I + to win
I have won
You + to see
you saw
You + to see
you have seen