Learn what "i think there must be a mistake" means, when people say it, and how to use it naturally in English.

It means the speaker believes something is wrong and wants it checked.
From Under Her Control, Episode 4
The speaker is politely saying they think the situation is incorrect or mixed up.
Use this when correcting a bill, order, message, or decision without sounding too aggressive. It is polite and very common.
Scenes unlock real expressions as you watch
Tap to translate or use dual subtitles
Practice immediately with AI Characters
Reinforce with quick quizzes and repetition
Build speaking confidence with drama-based context, instant explanations, and AI-powered practice tailored to real conversations.
Start learning