When do you use なんで and when do you use どうして? They both mean 'why', don't they?
Feb 22, 2011 6:47 PM
Answers · 2
yo, this is what I learned from my friends. なんで is more colloquial, so when u are with your friends you can say なんでそれ。。。 どうして is more formal, and u can use with your friend as well such as どうして帰ってきましたか？
February 22, 2011
なんで is just why. どうして is how come. どうして is asking more cause.