# A question about the conjunction "while"

Isaac Newton changed the world while in quarantine from the plague.

Isaac Newton changed the world while he was in quarantine from the plague.

while is clearly a conjunction in the second sentence because it connects two independent clauses.

Is while a conjunction in the first sentence as well? If yes, how?

• Yes, because 'he was' is understood. Mar 10 '21 at 17:15
• @Kate Bunting: Thanks. So it's just a case of ellipsis? Mar 10 '21 at 17:32
• Yes, I would say so. Mar 10 '21 at 17:36