query: What is the difference between "Could I have this... " and "Can I have this... "?
positive_passages.docid: 10368
positive_passages.text: What is the difference between can and could in 'Can/could you please explain this to me?'
negative_passages.docid: 17275
negative_passages.text: it VS. this Vs. that
negative_passages.docid: 34504
negative_passages.text: "could have" vs "could"
negative_passages.docid: 21920
negative_passages.text: Difference between These & Those
negative_passages.docid: 90139
negative_passages.text: 'this is' or 'these are'?
negative_passages.docid: 62469
negative_passages.text: Is it better to say "How do I..." or "How can I..."?
negative_passages.docid: 41606
negative_passages.text: May vs can, could or would
negative_passages.docid: 151460
negative_passages.text: Difference between "was to . . ." and "was to have"
negative_passages.docid: 4107
negative_passages.text: Difference between "I have got" and "I have gotten"
negative_passages.docid: 149433
negative_passages.text: "It can contain" or "It can contains"?
negative_passages.docid: 138033
negative_passages.text: whether it be vs whether it is
negative_passages.docid: 22414
negative_passages.text: Which is correct: "This is her" or "This is she"?
negative_passages.docid: 70052
negative_passages.text: "This one is" OR "This is"
negative_passages.docid: 130708
negative_passages.text: “It” vs. “that”
negative_passages.docid: 29914
negative_passages.text: What is the difference between  and ?
negative_passages.docid: 89900
negative_passages.text: What is the difference in meaning among these sentences?
negative_passages.docid: 88058
negative_passages.text: Difference between might and could