Been down this/that road beforeでしょう。（例）a husband and wife might have an argument, and the husband would say, "we've been down that/this road before", meaning that we've argued about this before.
http://www.youtube.com/watch?v=HQ0Kz03vHS0 0:44 we've been down this road before
http://www.youtube.com/watch?v=VH4kbybo60Y 1:20 Greg has been down this road before with his oldest daughter. 父のグレッグにとっては娘にボーイフレンドが出来るのは長女ですでに経験済みだった。
参考リンク
hhttp://bridge-english.blogspot.jp/2010/08/been-there-done-that.html been there done that とは？
