Question

i'm not able to ( rewrite using modal auxiliary)​

Answer 1

Use of model verb: I might not be able to.

What is a model verb?

• A model verb or auxiliary verb is used to show a prediction, possibility, intensity, obligation, as well as permission for action.
• We use 8 principal modal verbs: will, shall, can, could, would, should, must, and might.
• These are used as helping verbs along with the main verb.

Answer 2

use of modal verb: I Might not be able too