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Learn English > English lessons and exercises > English test #5593: Prefixes ( 1)
Prefixes ( 1)Prefixes We use prefixes to change meaning. They never change the part of speech. (Most suffixes change the part of speech.) • Many prefixes give a word a meaning which is the opposite or negative of the original. For example, we can use the prefixes dis or un: dis + appear - disappear un + tie - untie
• We use il instead of in with words that begin with l: il + legal = illegal• We use im instead of in with words that begin with m or p: im + polite - impolite• We often use ir instead of in with words that begin with r: ir + responsible = irresponsible. • Some common mistakes are: X You must disconnect the cables first.
• Note that many words with a prefix have a base part that never exists on its own. Here are examples: immediate, incontrovertible, uncalled-for Add a correct prefix to the following words.
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Don't write in capitals
