Learn useful ways to say "must be something" in English with drama examples and natural alternatives.

It means the speaker believes evidence exists and is encouraging the group not to give up.
From School Hall, Episode 24
Someone insists there must be a clue that will lead them to the truth.
Use this in detective-style or problem-solving talk. It is more dramatic and less common than everyday encouragement.
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