protected static $_plural = [
		'rules' => [
			'/(s)tatus$/i' => '\1\2tatuses',
			'/(quiz)$/i' => '\1zes',
			'/^(ox)$/i' => '\1\2en',
			'/([m|l])ouse$/i' => '\1ice',
			'/(matr|vert|ind)(ix|ex)$/i'  => '\1ices',
			'/(x|ch|ss|sh)$/i' => '\1es',
			'/([^aeiouy]|qu)y$/i' => '\1ies',
			'/(hive)$/i' => '\1s',
			'/(?:([^f])fe|([lr])f)$/i' => '\1\2ves',
			'/sis$/i' => 'ses',
			'/([ti])um$/i' => '\1a',
			'/(p)erson$/i' => '\1eople',
			'/(m)an$/i' => '\1en',
			'/(c)hild$/i' => '\1hildren',
			'/(buffal|tomat)o$/i' => '\1\2oes',
			'/(alumn|bacill|cact|foc|fung|nucle|radi|stimul|syllab|termin|vir)us$/i' => '\1i',
			'/us$/' => 'uses',
			'/(alias)$/i' => '\1es',
			'/(ax|cri|test)is$/i' => '\1es',
			'/s$/' => 's',
			'/^$/' => '',
			'/$/' => 's'
		],
		'irregular' => [
			'atlas' => 'atlases', 'beef' => 'beefs', 'brother' => 'brothers',
			'child' => 'children', 'corpus' => 'corpuses', 'cow' => 'cows',
			'ganglion' => 'ganglions', 'genie' => 'genies', 'genus' => 'genera',
			'graffito' => 'graffiti', 'hoof' => 'hoofs', 'loaf' => 'loaves', 'man' => 'men',
			'leaf' => 'leaves', 'money' => 'monies', 'mongoose' => 'mongooses', 'move' => 'moves',
			'mythos' => 'mythoi', 'numen' => 'numina', 'occiput' => 'occiputs',
			'octopus' => 'octopuses', 'opus' => 'opuses', 'ox' => 'oxen', 'penis' => 'penises',
			'person' => 'people', 'sex' => 'sexes', 'sleeve' => 'sleeves',
			'soliloquy' => 'soliloquies', 'tax' => 'taxes', 'testis' => 'testes',
			'trilby' => 'trilbys', 'turf' => 'turfs'
		],
		'uninflected' => [
			'.*[nrlm]ese', '.*deer', '.*fish', '.*measles', '.*ois', '.*pox', '.*sheep'
		]
	];