English phrase from drama scenes

What Does "i can't let" Mean?

Learn what "i can't let" means, when people say it, and how to use it naturally in English.

Advanced
Neutral
Firm
Set Boundary

I can't let them find out that I know.

It means the speaker must keep their knowledge secret.

From Undercovered Heart, Episode 19

When do people say this?

Scene Context

The speaker is hiding the fact that they know something important.

Usage Scenario

Use this in suspenseful or secretive situations when someone must not realize what you know. It is not a common everyday phrase, but it is useful for mystery and drama contexts.

Better ways to say it

1
I can't let them find out that I know.
2
They can't know that I know.
3
I have to keep them from finding out.

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How to Set Boundaries in English

What Does "i can't let" Mean? - ReelFluent