do: Foundation/infinitive; useful for existing tense apart from with third particular person singular subjects (apart from the singular they ‘Do’ and ‘Does’ also can emphasize the validity and assertion of statements. This is particularly handy in responses to uncertainties or when just one really should affirm an expression emphatically. https://mediajx.com/story25284792/a-secret-weapon-for-does-proleviate-help-with-shoulder-pain