Can Ultimate Gohan go Super Saiyan?

Title says all, and if he does,can he defeat Golden Frieza?

yes but he would be weaker than his Ultimate form.

his Ultimate form is his strongest form.

Ultimate Gohan already has all his power, with no need for transformations.

No, Mystic/Ultimate replaces SSJ and is Gohan's max power.

He can, but mystic makes it so that he doesn’t need to.

This was always the impression I had.

If he could’ve as Ultimate, then he would’ve. But I think his Ultimate form is supposed to replace his SSJ forms because it gives out Gohan’s max power output.