they should have let knowとは 意味・読み方・使い方

Apparently they want to know that.

They must have known it all along.

they were acquainted

They should be commended.

They insist that he should go.

we knew them well

They want to know about them.

They demanded to be informed immediately.

They want to confirm whether that's possible or not.

They were deliberating how it should be done.

You had better do what they say.

That was different from what they needed.

They had of necessity to separate

I continue to give out that demand to them.

I will have to help them.

Rather, they should be commended.

Their hopes should be casted into shape.

They're saying they want to verify that.

They should have arrived long ago.

I doubt that they'll want to go.

They are in a pitiable predicament―in a sorry plight―in a bad way.

They were obliged to separate

They needed to go there.

They should be welcomed.

they said their good-byes

They probably understand that.

They thought that departing right away was important.

They were solicitous to please.

They correctly handled the work they were suppose to do.

They have to do extra work.