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PRESENT PERFECT CONTINOUS

PRESENT PERFECT CONTINUOUS



PRESENT PERFECT CONTINUOUS  is used to describe an       
action which happened in the past and it has been continued      
up to uncertain time in  the future.                  
                           
Present Perfect Continuous  usually focuses on the duration of     
an action / activity or since when the action / activity begun.      
                 

 
Connectors  : for, since              
                   
For example :                
  S + have / has + been + V1 ing      
                   
  1. She has been waiting for 30 minutes.    
  2. He has been studying English for 3 years.          
  3. I have been teaching English for 7 years.            
  4. They have been studying here since last year.        
                           
                           
For example :                        
                           
  S + have / has + not + been + V1 ing            
                           
  1. She has not been waiting for 30 minutes.            
  2. He has not been studying English for 3 years.        
  3. I have not been teaching English for 7 years.          
  4. They have not been studying here since last year.        
                           
                   
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For example :                  
                     
  Have / has + S + been + V1 ing?        
                     
                     
  1. Has he been waiting for 30 minutes?        
  2. Has she been studying English for 3 years?          
  3. Have you been teaching English for 7 years?          
  4. Have they been studying here since last year?        
                           
                           
                           

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