How to say « peut-on ne pas rêver »?

I want to say this french sentence, in English. I hesitate between

Can we not dream?
Can we don’t dream?
Can’t we dream?

I want to ask for is it possible to not dream?


Solution 1:

I think you said it yourself: "Is it possible to not dream?"

It seems you're talking about literal dreaming (that thing that happens when you sleep) as opposed to "grand imagining" and while "Can we not dream" is correct, out of context it implies "grand imagining" not sleep-dreams. "Is it possible to not dream?" suffers less from that ambiguity.