how did you become
Comment es-tu devenu si bon en français ?
How did you become so good at French?
Comment es-tu devenu si fort ?
How did you become so strong?
Comment es-tu devenu si maigre ?
How did you get so thin?
— The Chaser (2008)
Comment es-tu devenu sale ?
How did you get dirty?
— Bouge pas, meurs, ressuscite (1990)
Comment es-tu devenu flic ?
How did you become a cop?