It’s been a long time since I’ve had cheesecake.
It's been raining non-stop for three days.
- It has been raining nonstop for three days.
It's been three years since Bob started his own business.
- It has been three years since Bob started his own business.
I've managed to find the solution to the problem that's been bugging me all day.
You're the best thing that's ever happened to me.
- You are the best thing that has ever happened to me!
This is the best thing that's ever happened to me.
- This is the best thing that has ever happened to me.
... and asks secure a what has been the most difficult moment in your musical career ...
... One of the biggest employers in town has folded. ...