PAST SIMPLE Use the Simple Past to express the idea that an action started and finished at a specific time in the past. Sometimes, the speaker may not actually mention the specific time, but they do have one specific time in mind.
EX:
I
saw a movie yesterday.
I
didn't see a play yesterday.
Last year, I
traveled to Japan.
Last year, I
didn't travel to Korea.
Did you
have dinner last night?
She
washed her car.
He
didn't wash his car.
present perfecto continous
We use the Present Perfect Continuous to show that something started in the past and has continued up until now. "For five minutes," "for two weeks," and "since Tuesday"
EX:
They
have been talking for the last hour.
She
has been working at that company for three years.
What
have you
been doing for the last 30 minutes?
James
has been teaching at the university since June.
We
have been waiting here for over two hours!
Why
has Nancy
not been taking her medicine for the last three days?
