query: Can or Could - which one is correct to usein question
positive_passages.docid: 157446
positive_passages.text: "Can" vs. "could" in asking a question
negative_passages.docid: 97227
negative_passages.text: "Has" vs. "have"
negative_passages.docid: 57963
negative_passages.text: When should we use "can", "could", "will", "would"?
negative_passages.docid: 14431
negative_passages.text: Might / May / Could / Would have been able to
negative_passages.docid: 655
negative_passages.text: "How it works?" vs. "How does it work?"
negative_passages.docid: 40247
negative_passages.text: Use of "Have" in questions "Do you have" or "Have you"
negative_passages.docid: 118503
negative_passages.text: Which is more correct:  OR
negative_passages.docid: 25348
negative_passages.text: Use "does" in front of another verb in a question?
negative_passages.docid: 22309
negative_passages.text: What vs. Which - correct usage in questions
negative_passages.docid: 30141
negative_passages.text: Can we use WHOSE for things? (or should I use 'that' or 'which'?)
negative_passages.docid: 4246
negative_passages.text: When to use "this" or "that"?
negative_passages.docid: 121488
negative_passages.text: Why do we use "have" with does and not "has"?
negative_passages.docid: 62735
negative_passages.text: Which of the following sentences is/are incorrect? ("Permit" vs. "allow" vs. "let")
negative_passages.docid: 105011
negative_passages.text: Which is the correct question ("Who has" vs "Who have")?
negative_passages.docid: 66988
negative_passages.text: "Which" or "what" or ... when referring to a main clause?
negative_passages.docid: 105201
negative_passages.text: " could " vs. " could have "
negative_passages.docid: 79398
negative_passages.text: How should I distinguish between "can" & "can't" in American English pronunciation?