Given a disfluent sentence, modify the sentence to it to its equivalent fluent form, preserving the meaning of the sentence.

Nuclear forces are no no I mean conservative forces include what?
Conservative forces include what?

When did no no didn't British begin to build fort under William Trent?
When didn't British begin to build fort under William Trent?

What substances do unhealthy no wait healthy cells produce?

What substances do healthy cells produce?