Grammar level

We were the best friends

We have been the bect friends

We use to be the best friends

We used to be the best friends

They will celebrate together

They are celebrating together

They celebrate together

Sam will come if we willtell him

I will call you if l have enuogh time

If you go to do some shopping, buy me something

If I will find your keys, I will tell you.

If I was at home now I would serf the net

If I were at home now I would serf the net

If I would at home now I serf the net

I learn different rules all the time

I study English rules

I study Maths

I don't learn Polish

They bought a lot of presents for their parents

Their parents bought a lot of presents

A lot of presents were bought for the parents

For

Till

Soon

Since

We have been discussing this text two hours

We had been discussing this text for two hours

We had been discussed this text for two hours

If Tom had knew about it before, he would tell us

If Tom had known about it before, he would tell us

If Tom had known about it before, he would have told us

Вони спілкуються один з одним

Вони колись часто спілкувалися один з одним

Вони один раз спілкувалися один з одним