$ echo {,2,3}{bi,tri}{,-curry}{,*,@} {,2,3}{keep,dip,slip}
bi bi* bi@ bi-curry bi-curry* bi-curry@ tri tri* tri@ tri-curry tri-curry* tri-curry@ 2bi 2bi* 2bi@ 2bi-curry 2bi-curry* 2bi-curry@ 2tri 2tri* 2tri@ 2tri-curry 2tri-curry* 2tri-curry@ 3bi 3bi* 3bi@ 3bi-curry 3bi-curry* 3bi-curry@ 3tri 3tri* 3tri@ 3tri-curry 3tri-curry* 3tri-curry@ keep dip slip 2keep 2dip 2slip 3keep 3dip 3slip