1)Before you leave, there are somethings I ought to tell you.(受中文"些"字意思影 响,误把单数的something 当somethings)
2)Before you leave,there are some things ought to tell you.
(误用something;句子成分残缺,从句漏了主语 I)
3)There are something that ought to tell you before you leave.
4)There is something ought to tell you before you leaving.(受中文"在"影响,误用了"leaving")
5)Before you leaving, there are have something ought to tell you.(there be 与 have 重复使用)
6)Before you left,there were something that ought to tell you.(误用时态和be 动词)