Are the keys on the couch? How to say this in English

Are these keys put on the sofa?

Are there some keys on the sofa? >>>More

Are the keys on the couch not there.

Keys on the sofa Not in >>>More

are your keys on the sofa？

Your adoption is what keeps me going >>>More

It's not there, it's been taken away by the mistress.

Onthesofa refers to something that is not on the body of the sofa itself. >>>More