Commonly misspelled English words is a very common error; the following words from the list are all good English words, though often incorrectly used in place of their homophones: Spell checkers do not detect incorrect use of homophones. Personal names and surnames may be pronounced like a standard English word, but with different spelling: "balance" and "John Ballance"; "war" and "Evelyn Waugh"; "marshal" and "George Marshall". Personal names do, of course, generally start with a capital letter. A misspelling in English might be made by someone used to a different spelling in another language; for example, "address" is translated "adresse" in French and German.
Letter frequency word variants when counting, such as "abstracts", "abstracted" and "abstracting" and not just the root word of "abstract". This system results in letters like "s" appearing much more frequently, such as when counting letters from lists of the most used English words on the Internet. A final variant is to count letters based on their frequency of use in actual texts, resulting in certain letter combinations like "th" becoming more common due to the frequent use of common words like "the". Absolute usage frequency measures like this are used when creating keyboard layouts or letter frequencies in old fashioned printing