Can I have affair with a school teacher ?

Of course you can. That is if she wants an affair with you. Make sure you're not attending the school where she's teacher

I'm sure it's possible. If you were younger maybe not.

A women?

Could but it would have implications for her if anyone else found out about it.

Well you can, I wouldn’t though

I wouldn't advise it. You might make her lose her job.

Sure if you want to get her fired.

It's bad