English phrase from drama scenes

What Does "my sister will never know" Mean?

Learn what "my sister will never know" means, when people say it, and how to use it naturally in English.

Beginner
Neutral
Firm
Set Boundary

My sister will never know.

It means the speaker believes the secret will not be discovered by their sister.

From The Crown, Episode 30

When do people say this?

Scene Context

The speaker is talking privately about keeping something from a sister.

Usage Scenario

Use this when talking about hiding something from a family member. It can imply secrecy or dishonesty, so it may sound suspicious.

Better ways to say it

1
My sister will never know.
2
She'll never find out.
3
No one will ever know.

How to learn English with ReelFluent

1
Discover

Scenes unlock real expressions as you watch

2
Understand

Tap to translate or use dual subtitles

3
Use

Practice immediately with AI Characters

4
Retain

Reinforce with quick quizzes and repetition

Learn practical English from scenes, not drills.

Build speaking confidence with drama-based context, instant explanations, and AI-powered practice tailored to real conversations.

Start learning

How to Set Boundaries in English

English Phrases for Work