do: Foundation/infinitive; used for existing tense apart from with third particular person singular subjects (apart from the singular they ‘Do’ and ‘Does’ could also emphasize the validity and assertion of statements. This is especially useful in responses to uncertainties or when one particular ought to affirm an expression emphatically. https://getidealist.com/story22271202/does-proleviate-help-with-shoulder-pain-can-be-fun-for-anyone