Sentence examples for how long it would from inspiring English sources

How long it would take?

The only question was how long it would take.

What he didn't know was how long it would take.

He couldn't say how long it would last.

I'm not sure how long it would have lasted.

No one could say how long it would take.

No one could say how long it would go on.

How long it would stay there nobody knew.

They ventured out gingerly, unsure how long it would last.

Not everyone was sure how long it would last.

I don't know how long it would be sustainable.