The antonyms for the phrase "begged to be excused" could be demanding or insisting. Instead of being polite and asking to be excused, demanding or insisting would imply a more forceful tone. Another antonym could be accepting or agreeing, where the person does not request to be excused from a task or event, but instead, willingly accepts the responsibility. In contrast, declining or refusing could also be antonyms, indicating that the person does not want to participate and is not asking to be excused but outright rejecting the invitation. Overall, choosing the appropriate phrase depends on the situation and the level of respect or assertiveness deemed necessary.