对了,我有件事想问你 英语怎么说

这话说“对了,我有件事想问你 ”用英语是怎样说的：“On, and I would like to ask you one thing”

By the way,There is another thing I want to ask you about.
对了, 还有一件事我想问你。

两种简单点的:

Sorry,I have sth to ask you.
Sorry,I want to ask you of sth.

By the way，I have got one thing want to ask you.

By the way,I have got something to ask you.

By the way,I have something to ask you.