This worksheet is designed to practice simple present and past and can help elementary learners to practice negative form and question f Complete each sentence with the helping verb do, does, or did. 1) /((DO DOES DID)). This worksheet is designed to practice simple present and past and can help elementary learners to practice negative form and question f The Verb to do: do, does and did. Complete each sentence with the helping verb do, does, or did. Main Verb Do Does he she it I you we they g