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		Grammar and Linguistics > Could anybody help me? Which is right?     
			
		 Could anybody help me? Which is right? 
		
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 jocel
 
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							| Could anybody help me? Which is right? 
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							| Hello Colleage!   Could anybody help me? Which is the right answer fo this question?   How long is it since you last ________ to the dentist? a. been b. went   I got confused with this. Please expain it for me. Thanks in advance!   jocel |  4 May 2011      
					
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 dinglesazara
 
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							| I think with "last " you have to use past simple, for example,   It �s a long time since I last saw Peter.     See you, Gloria    |  4 May 2011     
					
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 gabitza
 
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							| I would use the pres perf in the first sentence and the past simple in the second. 
 How long has it been since you last visited the dentist?
 
 Hugs,
 gabitza
 
 |  4 May 2011     
					
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 alexcure
 
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							| Yes, it must be "went" because the past simple tense is used when it is important when the action took place. Another thing is that if the present perfect is used it �s with the auxiliary "have" - and we cannot use it with "pure" past participle. |  4 May 2011     
					
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 jocel
 
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							| Hello Gloria, Gabitza, and Alexcure Thanks a lot for your help!!! I appreciate you all so mucho!!!   I am now cleared. Thanks again!   Hugs, jocel |  4 May 2011     
					
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 efty charle
 
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							| How long is it since you lasT WENT to the dentist? Before since we use the present perfect simple and it would me more correct if it was: How long has it been since you last went to the dentist? (After since we use past simple)   e.g. How long has it been since you last saw Mary? |  4 May 2011     
					
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