manghamyeon
to go to ruin
aller à la ruine ; être ruiné
manghaeyo
I fail
manghamnida
manghaetda
I failed
manghaetseumnida
manghal geoyeyo
I will fail
manghal geosimnida
망하면 안 돼요.
manghamyeon an dwaeyo.
If I fail, it's not good.
More words starting with 망