"The boys are going through a good moment."

[Latviete]

Could someone explain why "I ragazzi attraversano un momento buon" is wrong when "I ragazzi attraversano un momento buono" and "I ragazzi attraversano un buon momento" are both given as correct?

[Seresam]

http://answers.yahoo.com/question/index?qid=20091205173051AAp3T84

In summary, if it comes before the name you must use buon, if it's after buono. (obviously for male names)