No it is not a correct sentence. It should be "Her jaw dropped as though she had seen the devil."
There is no proof that the devil has ever been seen.
Ram is inept at money making since he has no job skills.
No. After all, the devil does not really exist.
Your about to die
Many people have claimed to see the Jersey Devil, however, very few photographs of the animal exist.
Anna and Marie have never seen a cattail before. However, you are not supposed to end a sentence with a preposition, so the correct sentence should be: Anna and Marie have never before seen a cattail. I don't think anyone would mind if you used the first form, though. It sounds a little better.
I haven't seen the girls all day.
Barnaby Stubbins went out one night and fell into a bog. It's said his ghost can now be seen in glimpses though the fog.
A sentence starting with had would be a question: Had you seen her before that?
The conjunction in this sentence is "or."
You or them
i think it means the devil. that's what somebody said.