Prior to now tense, the verb “do” modifications to “did” for all subjects. Conversely, “does” remains unchanged within the third-human being singular existing tense. Here are some examples: The plaintiffs from the lawsuit argue that this federal legislation does not use to federal government companies like the UC system. https://nimmansocial.com/story10434110/does-proleviate-help-with-shoulder-pain-can-be-fun-for-anyone