'Separate' is the most commonly misspelt word in the English language, according to a new study. The eight-letter word came top due to the regular placing of an 'E' where the first 'A' sits. Second in the list was 'definitely', which often falls victim to a string of mistakes including mixing up the second 'I' with an 'A'. Another common error is dropping the final 'E'. 'Manoeuvre', which is problematic due to the unusual combination of OE and U, came third and 'embarrass', in which an R or an S often falls by the wayside, was fourth. 'Occurrence' emerged as the fifth most commonly misspelt word due to confusion over the double C and double R. A spokesman for market research company www.OnePoll.com , which carried out the study of 3,500 Britons, said: ''There seem to be some words which we always struggle to get down onto paper, and 'separate' is one of those which eludes us. ...