It MIGHT/MAY/COULD not be warm enough to eat outside tonight, but we'll keep our fingers crossed.

Police are now saying that the fire MIGHT/MAY/COULD not have been started deliberately, although they have refused to rule out the possibility of arson entirely.

Although he lives here, we never see him. → He may ____ ?

It was a tough walk, but we COULD/WERE ABLE TO/MANAGED TO reach the end before it got dark.

He had a good chance of getting the job, but he didn't apply. → If he'd applied for the job, he could ______ ?

You MIGHT NOT/MAY NOT/CANNOT leave until I give you permission

I know you didn't want to come, but you MIGHT/MAY/COULD as well try and enjoy your now that you're here.

Don't run across the road like that again - you MIGHT/MAY/COULD have been run over!

Why on Earth didn't you tell me you were vegetarian? → You might ______ ?

Would you mind lending me your pen for a moment? → May ____ ?

He's so lazy / he MIGHT/COULD/MAY at least offer to do the washing up!

It's unlikely she was enjoying herself very much. → She can't ______ ?