Past, Simple, Future Perfect Continuous

I ...... running for 2 hours.

We ........... waiting for you for 20 minutes before they arrive.

They said that you ......... working over this project for 2 weeks before.

My mother ......... making this cake since morning.

I couldn't find the keys and we .............looking for them for an hour.

He knew, that they .......... discussing this problem for 3 hours.

We have known each other since childhood, we ........... tennis together.

I forgot to tell you, that your brother .......... waiting for you since morning.

I know that they ........... TV since afternoon.

Since next Tuesday we .............. working with this company for 2 months.