Present Continuous, Past Continuous, Future Continuous

we will buy

we are going to buy

we will

we will be going

waited

 were waiting

are going to wait

will be waiting

watched

was watching

is watching

were watching

aren't playing

isn't playing

doesn't play

play

is speaking

speak

was speaking

will be speaking

Olga and Marina is reading now.

Olga and Marina reading now.

Olga and Marina are reading now.

Olga and Marina have reading now.

Are you going to the park yesterday?

Are you going to the park tomorrow?

Were you going to the park yesterday?

Will you going to the park tomorrow?

My friend was watching TV at 8 AM yesterday.

My friend will have not reading this book yet.

My friend is watching TV at 8 AM yesterday.

My friend will be watching TV at 8 AM yesterday.

are taking

took

is taking

will be taking

Was reading/was playing

Was reading/play

We're reading/played

Was reading/had played

had taking

was taking

had taken

were taking

were watering

is watering

will be watering

was watering

Is...working

Was...working

Will...be working

Were...working

will be celebrating

is being celebrated

is going to be

will celebrating

are walking

was walking

had been walking

were walking

 was doing, was watching

 had done, watched

 was doing, were watching

did, was watching

are

am

is

are going to fly

is flying

were flying

will flying

isn't we?

are we?

aren't we?

will we?

will they?

won't we?

won't they?

aren't we?

going

was going

are going

were going

is looking

were looking

had been looking

was looking

are raining

is rain

is raining

raining

are going to

will be

is going to

am going to

is going to buy

are going to buy

will be buy

were buying