0“Do” is tricky because it can be an auxiliary or a main verb. Focus on these three uses:
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Auxiliary in questions: Do you like coffee?
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Auxiliary in negatives: I do not agree with that.
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Main verb (action): I do my homework every evening.
Activity: Write 3 questions, 3 negatives, and 3 main-verb sentences using “do.”
Takeaway: Mastering these three uses clears up one of the most common beginner/intermediate mistakes.
