Also in the following two sentences, some people use "for" whereas some people use "of"
Is there any way to good at preposition. Preposition is so confusing to me.
sentence1: Researchers in the U.S. suggest possible causes for a 150 percent jump between 1997 and 2007. sentence2: The researchers did not try to identify the causesof the increase, but they have some theories. Thanks in advance ryooster
Sorry, English prepositions just are very confusing - I'm pretty sure they must be the hardest part of the language to learn. In sentence 1, you could also say 'of'; perhaps in sentence 2 you could say 'for', but it doesn't sound quite as good. I don't know why!