Syntax
Questions
 Questions using
the verb to be are formed by inverting the subject
and the verb.
  
    
      | Affirmative | 
      She is Cuban. | 
    
    
      | Question | 
      Is she Cuban? | 
    
  
Questions using other verbs are formed with an auxiliary verb (do
  or did) before the subject.
  
    
      | Affirmative | 
      You like pizza. | 
    
    
      | Question | 
      Do you like pizza? | 
    
  
  
  
    
      | Affirmative | 
      She likes pizza. | 
    
    
      | Question | 
      Does she like pizza?
         
        NOT: Does she likes pizza?
         | 
    
  
  
  
    
      | Affirmative | 
      You started work yesterday. | 
    
    
      | Question | 
      Did you start
        work yesterday?  
        NOT: Did you started work
        yesterday?  | 
    
  
  
Questions using other auxiliary verbs are formed by inverting the subject
  and auxiliary verb.
  
  
    
      | Affirmative | 
      She is swimming. | 
    
    
      | Question | 
      Is she swimming? | 
    
  
  
  
    
      | Affirmative | 
      He has been to Japan. | 
    
    
      | Question | 
      Has he been to Japan? | 
    
  
  
  
    
      | Affirmative | 
      She can swim. | 
    
    
      | Question | 
      Can she swim? | 
    
  
  
  
    
      | Affirmative | 
      It will be hot. | 
    
    
      | Question | 
      Will it be hot? | 
    
  
  
 If the answer to a question is yes
  or no, the question starts with an auxiliary
  verb or the verb be.
  - Did you like the
    movie?
 
  - Are you Chilean?
 
If you want more information, the question starts with a question word like
  who, where, what,
  when, which, why
  or how.
  - What are you doing?
  
 
  -  Who did you see?
  
 
  - Where do you work?