Expert Advanced 1A Mixed verb forms

They were owning a restaurant before they sold it last year.

I was being at the party for a few hours before I noticed you were there too.

She hasn’t finished the report yet because she had been dealing with urgent emails all morning.

By the time the train arrived, they had already been waiting on the platform for forty minutes.

Although he has been working here for ten years, he has never received a promotion until last month.

If I had known how challenging the job would be, I would have never accepted it.

When the fire alarm rang, everyone was leaving the building already.

We were exhausted because we have been hiking for seven hours non-stop.

I had hardly stepped out of the office when I was realizing I forgot my phone inside.

They hadn’t been talking for long when I realized they already knew each other.