In past times tense, the verb “do” adjustments to “did” for all subjects. However, “does” remains unchanged from the 3rd-human being singular present tense. Here are a few examples: “Do” is usually a useful and versatile verb, but it has its limits—keep away from using it with modal verbs https://www.proleviate.com/post/does-proleviate-help-with-shoulder-pain