query: 'A knowledge' - is this correct?
positive_passages.docid: 18453
positive_passages.text: A secretary with ____ good knowledge of English: "a" or no article?
negative_passages.docid: 61233
negative_passages.text: people are/is: which one is correct?
negative_passages.docid: 49526
negative_passages.text: Which is correct? - "Guess, what it is?" or "Guess, what is it?"
negative_passages.docid: 17313
negative_passages.text: Using past tense when referencing a still-true fact
negative_passages.docid: 97408
negative_passages.text: Interpreting having known
negative_passages.docid: 76630
negative_passages.text: "An (obvious) problem" or "a (obvious) problem"?
negative_passages.docid: 18328
negative_passages.text: Is using "someone" in a question correct?
negative_passages.docid: 36633
negative_passages.text: Which is correct? "Did you know?" or "Do you know?"
negative_passages.docid: 140181
negative_passages.text: Past tense and the phrase "who knows what"
negative_passages.docid: 24661
negative_passages.text: "had they known" or "if they had known"
negative_passages.docid: 28704
negative_passages.text: When should I use "a" vs "an"?
negative_passages.docid: 112146
negative_passages.text: Should I use 'is' or 'are' with this complex subject?
negative_passages.docid: 129784
negative_passages.text: Is it right to use a singular form of the verb in this sentence?
negative_passages.docid: 83696
negative_passages.text: Isn't the word "experience" wrongly used in this context?
negative_passages.docid: 154084
negative_passages.text: Having done something,... vs Doing something,
negative_passages.docid: 28557
negative_passages.text: "As if he knows" vs "As if he knew"
negative_passages.docid: 111624
negative_passages.text: What is "A" in AGeV?