Дієслово to do

The verb to do has a great meaning in English. It can be used as an auxiliary and main verb.

Let’s consider some forms of the use of to do in different tenses in the table.

Forms of To Do
	Present	Past	Perfect Form	Continuous Form
I / you / we / they	do	did	have / had done	are / were doing
he / she / it	does	did	has / had done	is / was doing

This verb is often used in questions. As an auxiliary verb do is used with the main verb when forming interrogative or negative sentences or to add emphasis.

Question	Positive Statement (spoken)	Negative Statement (spoken)
Singular
Do I?	I do	I do not (I don’t)
Do you?	You do	You do not (You don’t)
Does he/she/it?	He/she/it does	He/she/it does not (He/she/it doesn’t)
Plural
Do we?	We do	We do not (We don’t)
Do you?	You do	You do not (You don’t)
Do they?	They do	They do not (They don’t)