hard to find


Population ecology on snakes is particularly difficult because they're really hard to find.  This sentence comes from http://www.science.gc.ca/default.asp?Lang=En&n=94DF84A8-1.



I was wondering  if infinitive  " to find " in clasuse " because they are really hard to find"   acts as an adverb ?


If infinitive function  is  an adverb  ,  it modifies an adjective " hard"  , then it can match which of them " when , where , how, why"



edited Nov 16 '11 at 00:10 JunweiZheng New member

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