There is no telling whether he will come not.

参考译文：难以预测他将是否会来。

这是there be句型吗？如果不是的话，那是什么句型？感谢老师的回答。

There is no telling 难以预测/不可能不知道/很难说

There is no telling what will happen in future.  

无法预测将来会发生什么事情.

There is no telling what kind of damage those conditions have caused.  

尚不知道在那种环境下会造成何种损害.

（备注：以上真正主语为no telling)

以上属于There is no doing 结构  表示"不可能"、"无法"

【1】There is no doing +各种从句

There is no telling what he is going to do. 

There is no telling what he will think up next . 

There is no telling when we can complete the project. 

There is no denying the fact that China is still a developing country．

【2】There is no doing sth

There is no joking about such matters．

There is no telling what will happen to him next．

There is no joking about such matters．

There’s no denying the fact. 

There is no getting over the difficulty. 

【3】There is no sth in doing sth

(1)There is no sense in doing sth 

结构。意为“做某事没有道理或好处”：

There’s no sense in criticizing him. 批评他也没有用。

There’s no sense in waiting three hours. 等三小时是不没有道理的。

There’s no point in doing sth 句式。意为“做某事没有用”：

There’s no point (in) telling her about is. 告诉她没有用。

There’s no point in wasting time. 耗时间没用。

(2)There is no difficulty in doing sth. 

结构。意为“做某事没有困难”：

There is no difficulty in finding his office. 

找到了他的办公室没费一点劲。

There was no difficulty in carrying out the plan. 

执行这项计划没什么困难。

【4】There’s no doubt… 结构。意为“毫无疑问…”：

There is no doubt of his success. 毫无疑问他一定会成功。

(1)There is no hurry (to do sth) 句式。其意为“不用急(于做某事)”：

There’s no hurry to return the book. 现在不急于还书。

There’s no hurry, so do it slowly and carefully. 不用赶时间，要慢慢细心地做。

【4】There’s no need for…结构。其意为“不需要或不必要…”：

There is no need for help. 不需要帮助。

There is no need for you to go. 你没有必要去。

【5】There is no question about...结构。其意为“…是毫无疑问的”：

There’s no question about his success. 毫无疑问他会成功。

There’s no question about his honesty. 毫无疑问他是诚实的。

There is no question of doing sth 句式。其意为“做某事是不可能的”：

There is no question of his coming. 他不可能会来。

There is no question of our arriving on time. 我们不可能准时赶到。

【6】There is no sense in doing sth 结构。意为“做某事没有道理或好处”：

There’s no sense in criticizing him. 批评他也没有用。

There’s no sense in waiting three hours. 等三小时是不没有道理的。

There’s no point in doing sth 句式。意为“做某事没有用”：

There’s no point (in) telling her about is. 告诉她没有用。

There’s no point in wasting time. 耗时间没用。