MS skill varies
If he didn't use it, he can't
Amaterasu is Itachi's jutsu; he gifted it to Sasuke. Madara doesn't have it.
Yes. Susanoo requires Amatersu and Tsukuyomi to be unlocked. The only reason Madara doesn't use it, is because its his character to use dominate Jutsu. We seen when Sasuke used Amatersu, he disrespected the Jutsu.
Amaterasu is Itachi's jutsu; he gifted it to Sasuke. Madara doesn't have it.