I am very sorry to say that I failed again.

something

I am very sorry to say something that I failed again.

nothing something anything everything
我是从事英语的，不明再问。

其实不加也可以。要加就加SOMETHING.
我不是从事英语的，不过不明白也可以来问我，经理嘛，总会当上的。

I am very sorry to say something that I failed again.