To buy: I buy on cash OR I buy with cash

Hello Alan and Torsten! I need your help! What is correct?
…I buy on cash… I buy with cash… I buy for cash…
… I buy for credit… I buy on credit…
thank you
Batman :roll:

Hi,

Buy for cash/with/by credit.

Alan

Dear Alan,
You wrote:

Can I write: I bought the car on credit. ? or : I have the car bought on credit. ?

I bought the car on credit.

Hello Kitosdad,
Thank you for your answer. I think I can write both of them.