This is used to create negative sentences, questions, or for adding emphasis. Do is used to form questions, by putting the subject after 'do' and before the main verb in its infinitive form, that is the form without 'to'. It's a mess.[~ + over + object] you'll have to do over the work;
Do is one of three auxiliary verbs in english: [transitive] do somebody/something to copy somebody’s behaviour or the way somebody speaks, sings, etc., especially in order to make people laugh he does a great elvis presley. (to) do is an irregular verb that can function as a main or auxiliary verb.
We use do to make negatives (do + not), to make question forms, and to make the verb more emphatic. See examples of do used in a sentence. Do nothing until you hear from me.; It is also common to use do, does and did as auxiliary verbs (or helping verbs) together with another verb in its base form. To perform (an act, duty, role, etc.). They did up the package and. Its widespread use across different. Its forms are do, did, done, doing, and does.
[~ + object + over] do the work over; To perform an act, duty, or role: Do synonyms, do pronunciation, do translation, english dictionary definition of do.