"itsumademo" = いつまでも It has a meaning of "forever" or "indefinitely". Here are some dictionary references: http://wordreference.com/jaen/%E3%81%84%E3%81%A4%E3%81%BE%E3%81%A7%E3%82%82 http://eow.alc.co.jp/%E3%81%84%E3%81%A4%E3%81%BE%E3%81%A7%E3%82%82/UTF-8/ "zutto" = ずっと It has a meaning of "since then" or "ever since". Here are some dictionary references: http://wordreference.com/jaen/%E3%81%9A%E3%81%A3%E3%81%A8 http://eow.alc.co.jp/%E3%81%9A%E3%81%A3%E3%81%A8/UTF-8/ Good day. / じゃね。