interrogative
    /ˌɪntəˈrɑːgətɪv/ 
    
 
    
    adjective
    
    grammar
    
    having the form of a question rather than a statement or command
    
    
    
    used to ask a question
    
    
    
    formal :asking a question :having the form or force of a question
    
    
    
    
    
    noun
    
    plural -tives
    
    [count] grammar :a word (such as who, what, or which) that is used in asking a question
    
    the interrogative
    
    the form that a phrase or sentence has when it is asking a question