
I/I’ll bet!
Express Certainty
Use it when you're almost sure about an outcome, showing a strong belief.

I bet the teacher will assign homework over the weekend.
Colloquial Assurance
It's informal and used in everyday conversation rather than in formal writing.

I'll bet the new restaurant is packed tonight.
Predicting Behavior
Often used to predict someone's actions based on what you know about them.

I bet she's going to be late again.
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