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In page English plurals:

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|ox||oxen||(particularly when referring to a team of draft (draught) animals, sometimes oxes in nonstandard American English)[citation needed]|-|child||children||(only possible plural; originated as a double plural, with -en added to Old English plural cildra/cildru, which also led to the archaic plural childer as in Childermas, occasionally still encountered in Ireland).|-|brother||brethren||(archaic as plural of brother meaning a male sibling, but often seen as plural of brother meaning a member of a religious congregation or fraternal organization;[1] originated as a double plural, with -en added to Early Middle English brother)

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