1. for sale
I like this one. Excuse me, is this car for sale?
This house isn't for sale.
My car is for sale.
I’m sorry, madam. That chair is not for sale.
I'm sorry, but this house is not for sale.
There were some snacks and drinks for sale at the exhibition.
Excuse me, is this couch for sale?
I’m afraid the pictures on the wall aren’t for sale.
1. I don't think it's for sale. / 2. Yes, I thought the house was for sale.