- John's face changes as if he has seen this before.
Here this could any thing (an object, a map, a place, a movie, etc).
Normally when you see something and if you feel as if you have seen this before, your facial expression changes reflecting that. I wrote the above sentence to describe it. Is it grammatically correct?
I checked google, I see many sentence for "as if he has seen this before" but I don't see any sentences matching "face changes as if * has seen this before" I feel like this is valid sentence and conveys the meaning. But I'm confused since there is no match in the google. That means this sentence is wrong? How?