Simple present/past/future
They ____ (play) basketball every weekend.
play
She ________ (be/sleep) when you called her.
was sleeping
John and Sally _______ (be) very fast when they were children. Now, they can't run anymore.
were
She had been ________ (study) for hours when he arrived.
studying
We ________ (be/have) dinner when the lights went out, and we ________ (has/finish) the meal by the time you arrive.
were having, will have finished
The sun _____(rise) at 6 AM yesterday.
rose
She ________ (be/watch)TV at 8 PM tonight.
will be watching
A: I didn't know John could swim.
B: Really? I _____ (know) that.
knew
The team will have been ________ (test) the new system for a year by the time it launches.
testing
They ________(be/bake) a cake, and they ________(has/make) it before the party starts.
are baking, will have made
She ___ (teach) mathematics at the university next semester.
will teach
He ________(be/develop) his new project with great enthusiasm.
is developing
They ________(hide) the money from the thief already.
hid
The team had been ________ (collaborate) on the project for months before it was completed.
collaborating
She ________ (be/watch)TV when I called, and she ________(has/finish) the show by tomorrow.
was watching, will have finished
He ____ (complete) the project ahead of schedule, impressing his supervisors
completed
We ________(be/travel) to Italy next summer.
will be travelling
Did you hear? Mr. Steve ________ (quit) his job yesterday.
quit
The scientists ________(have/be/investigate) the problem for years before they finally found a solution.
had been investigating
She ________(be/plan) a new marketing strategy when the merger was announced, and she ________ (has/develop) the final plan by next month.
was planning, will have developed
They ________ (organize) a charity event last month that ________ (raise) significant funds for the cause.
organized, raised
The company will be ________(present) its annual report ________ the shareholders' meeting.
will be presenting, during
A: I think someone _______ (steal) my wallet.
B: You probably _______ (forget) it at home.
stole; forgot
The team ________ (have/be/collaborate) on the project for months before it ________(be) completed.
had been collaborating, was
The team ________ (be/prepare) the presentation, and they ________(has/complete) it by the next meeting.
is preparing, will have completed