Often, ‘less’ is used when ‘fewer’ is meant. This is easily done, particularly as we are often taught that ‘less’ is the opposite of ‘more’. Basically, use ‘fewer’ when talking about a countable number, but ‘less’ when you mean something that doesn’t have a plural or can’t be counted: ‘fewer dancers have less visual impact.’
‘Fewer people are learning the foxtrot at school these days.’
‘The shop sold fewer feather boas than ever before this year.’
‘Fewer than one in ten adults can perform a proper samba.’
‘There are fewer dance numbers in films than there used to be.’
‘I dance to less pop music than I used to.’
‘There’s less talent than there ought to be.’
‘I should spend less time trying to do the lift from Dirty Dancing.’
‘Less’ is only ever used with numbers when they are on their own or used as expressions of time or measurement:
‘The tap class lasted less than two hours.’
‘She travelled less than three metres with that leap.’
I hope this will help you make fewer errors in the future!
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