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Three Kinds of Verbs
Auxiliary verb, modal verb, full verb
3750
 
Three Kinds of Verbs - Be
Auxiliary verb Be - continous or passive sentences
4066
 
Three Kinds of Verbs - Do
Auxiliary verb Do - negative sentences or questions
4065
 
Three Kinds of Verbs - Have
Auxiliary verb Have - perfect sentences
4067
 
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