What are the examples of 20 predicative clauses?

This is what I want.

This is what I want.

The reason why he was late was that his bike was broken.

He was late because his bike was broken.

Next Sunday is the time when we meet.

Next Sunday is the time for us to meet.

This is the reason why I am late.

This is the reason why I am late.

My question is which computer to choose.

My problem is that I don't know which computer to choose.

The focus of the argument is whether it will rain tomorrow.

Whether it will rain tomorrow is the subject of debate.

What the police want to know is when you entered the room.

What the police want to know is when you entered the room.

The problem is that we are short of funds.

The difficulty lies in our lack of funds.

This is what we should do.

This is what we should do.

So I want you to work there.

So I want you to work there.

His first question is whether Mr. Smith has arrived.

His first question is whether Mr. Smith has arrived.