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  PRESENT PERFECT CONTINUOUS / PRESENT PERFECT PROGRESSIVE  <44 free exercises>
01- present perfect continuous exercise 02- present perfect continuous questions  
03- continuous positive and negative 04- present perfect progressive questions  
more free exercises -> fla fla exc exc fla fla fla fla fla fla exc fla  
exc exc exc fla fla fla exc fla  
exc exc exc exc exc exc exc exc  
exc exc exc exc exc exc exc fla  
fla exc fla exc   exc exc exc  
exc fla exc exc fla fla fla exc  
exc exc exc exc exc exc exc exc  
exc exc exc exc exc exc exc    
to learn to learn verb conjugation  
LEARN IT  
to learn to learn to learn  
aprender to learn to learn  
to learn video video        
   
exc = exercises    fla = flash exercises (you need shockwave)    
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