I was wondering how doese a person figure ut chord progressions?

For instance I know that a magore scale progression can be I IV V,but what next? Would it be ii or iii or mayber vi? Is there a theory for figureing out progressions?

Also what would a standerd (as in amybe a basic example) of a Dorian or a Phrygian progression?

I was just wondering because I am really bafled by how chord progressions are made.
My name is Andy
Quote by MudMartin
Only looking at music as math and theory, is like only looking at the love of your life as flesh and bone.

Swinging to the rhythm of the New World Order,
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