Anonymous did ,do,does Those are not modal verbs. 'Do' is an auxiliary of interrogative (question) sentences and emphasis, as well as a dummy operator and support for other verbs: Do you like sushi? Yes, I do.
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Anonymous did ,do,doesThose are not modal verbs. 'Do' is an auxiliary of interrogative (question) sentences and emphasis, as well as a dummy operator and support for other verbs: