Grammar Point
A Keyphrase should be a short phrase that brings to mind and helps to remember the information on this frame.
cannot possibly be
Verb Dictionary Form +
A formal expression used to indicate that something is absolutely impossible or cannot even be imagined. It is often used with verbs related to mental states or perceptions.
Verb Dictionary Form
The dictionary form of a verb is followed by
そんなことは想像す
There is no way to even imagine such a thing.
彼の本心を知る
It is impossible to know his true feelings.
回復を望む
There is no way to hope for a recovery.
Note
This is a very formal literary expression and is not used in casual conversation. When using the verb する, it can take the form する