Somehow I am unable to file my state return because being a retired teacher in MI I am not to be taxed state taxes How do amend the a state form?

[EbonyA]

I presume you are attempting to amend a previous year's state tax return being that you were unable to file one this year. If so, those steps can be found here:  Amending prior year state return

I am also including the steps for amending a current state return and also a current federal return just in case - those FAQ's are below:

Amending a state return

Amending a federal tax return