When you use terribly?

The adverb "terribly" is used to describe an action or state in a way that emphasizes a negative aspect, often implying that something is done in a very bad or unfortunate manner. For example, one might say, "I performed terribly on the exam," indicating a poor performance. It can also express strong feelings or intensity, such as "I’m terribly sorry," which conveys deep regret. Overall, it adds an emotional weight to the statement it modifies.