SIMPLE PAST: For things that happened YESTERDAY, LAST WEEK, etc.
Examples: We WENT to the movies last night. DID you SPEAK to John yesterday? What DID you SEE, when you were in France? Who CAME to your party last night?
SIMPLE PRESENT: For things that happen USUALLY, ALWAYS, etc.
Examples: We GO to Burmuda every year. DOES Tom SPEAK Chinese? What DO you usually DO in the evening? Tobacco shops SELL stamps in France.
PRESENT PROGRESSIVE: For things that are happening NOW.
Examples: Tom IS SPEAKING to Janet now. I can't answer the phone - I'M HAVING a bath. IS Sue WAITING for us?
and in the NEAR FUTURE:
Examples: We ARE GOING to Las Vegas next week. What ARE YOU DOING next weekend? What ARE you READING now?
Susan was in France last week. She _____ nothing but French there.
speaks
spoke
is speaking
_____ to Mary yesterday?
Do you talk
Are you talking
Did you talk
How much _____ for the flat he bought last year?
did Joe pay
is Joe paying
does Joe pay
Which train did he _____ to get here?
take
took
taking
I came to see you yesterday. Where _____ you?
are
were
do
I always _____ the 7:30 train.
took
am taking
take
Please call the hotel and _____ a reservation.
make
made
making
What language do people _____ in Brazil?
speak
speaking
spoke
We _____ to Rio next month.
are going
went
go
Janet is leaving in the morning. She _____ now.
packs
is packing
packed
I never carry cash. I always _____ by credit card.