Bad and Badly
Incorrect : The milk has gone badly.
Correct : The milk has gone bad.
Incorrect : I have done bad in the exam.
Correct : I have done badly in the exam.
Note : An adjective modifies a noun and an adverb modifies a verb. In the first example, the noun "milk' should be modified and in the second example the verb "have done’ should be modified.
Most Popular Course:Data Science of Harvard, MIT, IBM....
John Academy: 97% Off on Popular Online Courses