query: What are the rules when to use double letters for words that end with a consonant when modified both in British English and in American English?
positive_passages.docid: 23950
positive_passages.text: "Focussed" or "focused"? Rules for doubling the last consonant when adding -ed
negative_passages.docid: 142501
negative_passages.text: Correct punctuation with two nouns?
negative_passages.docid: 61430
negative_passages.text: Rules for removing last vowel when adding "-able"?
negative_passages.docid: 12165
negative_passages.text: Is a period after an abbreviation the same as an end of sentence period?
negative_passages.docid: 26325
negative_passages.text: Does an adjective apply to both nouns when they are joined with 'and' [or 'or']?
negative_passages.docid: 37675
negative_passages.text: Pluralization rule is different when we say, 10 pound note and 10 pounds?
negative_passages.docid: 3454
negative_passages.text: Why do some words use duplicate letters seemingly without reason?
negative_passages.docid: 58763
negative_passages.text: Why is the plural of "quiz" spelled with double Z?
negative_passages.docid: 79952
negative_passages.text: What if an abbreviation is at the end of a declarative sentence? Should I duplicate a full stop sign?
negative_passages.docid: 14562
negative_passages.text: How did the phenomenon of doubling words come about?
negative_passages.docid: 91575
negative_passages.text: Past simple vs past perfect; British- vs American English
negative_passages.docid: 1934
negative_passages.text: Why does English spelling use silent letters?
negative_passages.docid: 97495
negative_passages.text: Is there any rule for differentiating between the endings "th" and "ht"?
negative_passages.docid: 61407
negative_passages.text: What is the correct way to pluralize an initialism in which the final word is not pluralized by adding the letter "s"?
negative_passages.docid: 91584
negative_passages.text: Does æ differ or not (American English)?
negative_passages.docid: 110036
negative_passages.text: "Half" or "A Half"
negative_passages.docid: 30035
negative_passages.text: What is the history of adding the a- prefix to form words?