re- - again, pre- - before , mis- - wrongly , un- - ‘not’, sub- - below, anti- - against, extra- - beyond, co- - jointly or together, ex- - out, dis- - not, inter- - between or among, mono- - one , non- - not or without, post- - after, bi- - two, in-, im-, il-, ir- - not, without,

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