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		Ask for help > are not able or are unable     
			
		 are not able or are unable 
		
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 gharbi2009
 
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							| are not able or are unable 
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							|  Hi everyone!  I �m not sure which alternative fits better in the following sentence, Many children are unable / are not able to afford a meal during the day.  Have a nice day |  12 Dec 2015      
					
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 cunliffe
 
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							| Well gharbi, I am going to risk an answer!  Insofar as I know, both are perfectly fine and I �m not sure there is any difference in meaning - certainly not to the ordinary person in the street. I think it boils down to personal preference and I would use  �aren �t able �.  �Can �t � would also do, of course.  Have a great day, Lynne   |  12 Dec 2015     
					
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 Tapioca
 
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							|  I agree with Lynne. Perhaps  �unable � sounds a bit nicer, but the meaning is the same.     Tap |  12 Dec 2015     
					
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 gharbi2009
 
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							|  hi Tap and Lynne!   Thanks for your help. The problem is that the sentence is suggested in an exam and I must justify the answer: why this or that. I read somewhere that  �not able � refers to internal constraint whereas "unable" refers to external constraint. That �s why, I �m considering choosing " unable".   Gharbi |  12 Dec 2015     
					
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 Tapioca
 
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							|  I hadn �t heard of that distinction Gharbi, and I doubt it exists in the real world. There �s a discussion of this  exactly on the StackExchange English website (thanks to Jayho for pointing me there). There are some very smart people who provide answers there so it �s a good place to check, though you don �t get the same sense of community (with the exception of a recent exchange here cough cough).     Tap |  12 Dec 2015     
					
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 gharbi2009
 
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							|  thanks Tap, for the link. I �ll check it. By the way, I hope the recipe was quite clear (don �t add too much pepper, here we do.   Gharbi   |  12 Dec 2015     
					
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