要加to

adj.不可能的，做不到的;難以忍受的;不會有的，不能相信的

n.不可能;不可能的事 擴展資料

　　It is almost impossible to keep abreast of all the latest developments in computing.

　　要跟上計算機領域所有最新的發展幾乎不可能。

　　It is impossible to defend against an all-out attack.

　　防禦全面進攻是不可能的`。

　　It's mathematically impossible.

　　這在數學上是不可能的。

“不可能的”兩個經典句型的互換

There is(was)+no +動詞ing結構相當於It is(was) impossible to +動詞原形，

如：

There is no saying what may happen.= It is impossible to say what may happen.說出將要發生什麼是不可能的。

There is no going home. =It is impossible to go home. 回家是不可能的。

There is no living with him.=It is impossible to live with him. 和他住在一起是不可能的。

There is no knowing what may happen. =It is impossible to know what may happen. 不可能知道會發生什麼。

There is no telling what will happen tomorrow.=It’s impossible to what will happen tomorrow. 誰也無法預料明天會發生什麼