English phrase from drama scenes

What Does "you don't know what he's capable of" Mean?

Learn what "you don't know what he's capable of" means, when people say it, and how to use it naturally in English.

Intermediate
Neutral
Firm
Warn

You don't know what he's capable of.

This warns that someone may be very dangerous or unpredictable.

From Killer Romance, Episode 11

When do people say this?

Scene Context

Someone warns another person that he does not understand how dangerous the man is.

Usage Scenario

Use it in serious arguments or danger warnings. It sounds tense and is not casual small talk.

Better ways to say it

1
You don't know what he's capable of.
2
You don't know what he can do.
3
You have no idea what he's capable of.

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How to Warn Someone in English

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What Does "you don't know what he's capable of" Mean? - ReelFluent