The misuse of “badly” is more of a problem in speech than in writing, and it is baffling. Here is an example: “I felt badly for Juan after he made that terrible mistake in the third quarter.” Perhaps the people who say “badly” when they should say “bad” are worried that they will sound ignorant. Here is the rule: After the verb “feel” and its forms, use the adjective “bad,” not the adverb “badly.” The verbs of the senses (feel, smell, look, sound, taste), like forms of “to be,” are followed most often by adjectives. “The car looked bad[.....]