Differences between HAVE TO and MUST (to express strong obligation, to indicate a necessity, etc.)

This video tutorial explains the differences between 'have to' and 'must' in English. It covers their usage in American English, sentence structures, and how they express obligation, recommendation, likelihood, and necessity. The tutorial also discusses their application in past and future tenses, providing examples and a recap of key points.

What new insight or understanding did you gain from this video?