Having the option of not using a word in a combinatory attack

[JuanPelota]

Hello

I am trying for sveral wks to crack an old ethereum wallet (#sigh)

I have a blurred idea of what the password could be. To ease combinatory attacks and workload on my old CPU, I'd like to know if there is trick to avoir using a word from a list in a combinatory attack. 
Example

My password might be 

Alphabeta99gamma or Alphabetagamma or Alphabeta9gamma

I'd like to makee combination from two lists
Let's say on the left part I have

Alfa
Alpha
Alfabeta
Alphabeta
Alfabéta
Alphabéta

On the right I would have


"blank"
9
99

and then a third part I could add lately


So that in the end  I could have a (big) list of variation of the first part of my passsword without the second part thanks to the "blank" 

I guess  I could just pass a list  of the left part of the password but actually it's a very simple example here and my password might be 50+ characters thanks to a passphrase with different characters between words, you get the idea ? 

Thanks