YOU SAID:

hi my dear best friend, i love you so much which cause me to want to marry you

INTO JAPANESE

こんにちは私の親愛なる親友、私はあなたと結婚したいのですが

BACK INTO ENGLISH

Hello my dear friend, I want to marry you

INTO JAPANESE

こんにちは私の親愛なる友人、私はあなたと結婚したいです

BACK INTO ENGLISH

Hello my dear friend, I want to marry you