Maybe he'd better try to find out what was really wrong instead of making up excuses for her behavior.

I'd better not try to explain it all just yet.

And you'd better not try to stop us from meeting with you out there.

But you'd better not try anything in this school, young lady.

He'd better try and find out where the hell he was.

"I think we'd better try to put the best face on this meeting."

Don't you think we'd better try to find a place where we can get a drink of water?

I think we'd better try to slow them down if they're ahead somehow.

Meaning they had better try to get hold of the phone records.

I think that's what we'd better not try when we're alone.