Could you please help me correct these 4 sentences?

Could you tell me how to properly say these sentences if they aren't already grammatical?

1 What time does it have to be in order for you to actually consider staying longer?
2 I don't think he had that considering I had them. He couldn't have had them.
3 I love being your princess./I love it when I'm your princess.
4 That's the only sentence you said that sounded correct.

Thank you