Do and Does are  
important verbs in
English. They are used
as auxiliary verbs for
negative statements or
simple present
questions.

The lesson below shows
you how to use do and
does properly
.
QUESTIONS

Questions with verbs in the simple present use the auxiliary
verb “DO”.

Structure

Do/Does   +   Subject   +   Base Verb

Examples:
  • Do you like pizza?
  • Does she play baseball?

Answers

The answers to do/does questions are always "yes" or "no".
This is why they are
Yes/No Questions.  

Question:        Do you like chocolate?
Answer:           Yes I do.
                      No I do not.

Question:        Does she have a brother?
Answer:           Yes she does.
                      No she does not.


NEGATIVES

Negative sentences in simple present use do or does.

Structure

Subject        +        Do/Does        +        Not        +        Verb

Examples:
  • I do not like hockey
  • She does not live in Brazil.

Contractions

Do not  =  Don't        
Does not  =  Doesn't

Examples:
  • They don't have a dog.
  • He doesn't want a drink.


VERB STRUCTURE

The verbs after "do" and "does" are always in the base form.

Examples:
  • She plays hockey.
  • She does not play hockey.

The subject of the sentence only changes the "do" or the
"does". The verb is always a base verb.

  • Does she live in New York?
  • Do they live in New York?

  • He does not have a brother.
  • They do not have a brother.
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Are you ready for some do/does tests? Click on the links
below to test your ability:

Do/Does Questions Test

Do/Does Questions Test 2

Do not/Does not Test

Do Does

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