English phrase from drama scenes

What Does "who could do this" Mean?

Learn what "who could do this" means, when people say it, and how to use it naturally in English.

Intermediate
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Who could do this?

It expresses shock and disbelief and asks who might be responsible.

From Mysterious Murderer, Episode 9

When do people say this?

Scene Context

Someone reacts to a terrible event by asking who could have done it.

Usage Scenario

Use it when reacting to something awful or unbelievable. It is natural in dramas and emotional conversations, but it is not a direct factual question.

Better ways to say it

1
Who could do this?
2
Who would do this?
3
How could someone do this?

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