Is "do" from "do I feel" an emphasis?
Yes, "do" in this sentence is used for emphasis. Phoebe is expressing how bad she feels about the situation in the clip. If you listen carefully, you can hear the change of intonation in Phoebe's voice when she says "do." Keep in mind that the emphasis on words can change depending on the situation. Here are possible examples of "do" being emphasized. Ex: I do feel bad about what happened. Ex: You do recognize that this is a serious problem, don't you? If you are curious about how to use the word "do," I will go into a brief explanation. "Do" is commonly used to form questions. When forming a question, "do" can be placed at the beginning of the sentence, it can be placed within the sentence, and it can be placed at the end of a sentence. "Do" acts as a verb in the sentence. Conjugations for "do" are "does" and "did." Ex: Do you want to go to the park today? Ex: What do you want to do today? Ex: Do you think we should tell her? As in the emphasized examples, "do" does not always need to be used in questions. It can be used in statements as well! Ex: I do like cupcakes! Ex: We do want to do a skit for this year's play.