iwp = $.extend(iwp, {
	inflector : {
		pluralRules: {
			'(quiz)$': '$1zes',
			'^(ox)$': '$1en',
			'([m|l])ouse$': '$1ice',
			'(matr|vert|ind)(?:ix|ex)$': '$1ices',
			'(x|ch|ss|sh)$': '$1es',
			'([^aeiouy]|qu)y$': '$1ies',
			'(hive)$': '$1s',
			'(?:([^f])fe|([lr])f)$': '$1$2ves',
			'sis$': 'ses',
			'([ti])um$': '$1a',
			'(buffal|tomat)o$': '$1oes',
			'(octop|vir)us$': '$1i',
			'(bu)s$': '$1ses',
			'(alias|status)$': '$1es',
			'(ax|test)is$': '$1es',
			's$': 'ses',
			'([^s])$': '$1s'
		},

		singularRules: {
			'(quiz)zes$': '$1',
			'(matr)ices$': '$1ix',
			'(vert|ind)ices$': '$1ex',
			'^(ox)en$': '$1',
			'(alias|status)es$': '$1',
			'(octop|vir)i$': '$1us',
			'(cris|ax|test)es$': '$1is',
			'(shoe)s$': '$1',
			'(o)es$': '$1',
			'(bus)es$': '$1',
			'([m|l])ice$': '$1ouse',
			'(x|ch|ss|sh)es$': '$1',
			'(m)ovies$': '$1ovie',
			'(s)eries$': '$1eries',
			'([^aeiouy]|qu)ies$': '$1y',
			'([lr])ves$': '$1f',
			'(tive)s$': '$1',
			'(hive)s$': '$1',
			'([^f])ves$': '$1fe',
			'(^analy)ses$': '$1sis',
			'((a)naly|(b)a|(d)iagno|(p)arenthe|(p)rogno|(s)ynop|(t)he)ses$': '$1$2sis',
			'([ti])a$': '$1um',
			'(n)ews$': '$1ews',
			's$': ''
		},

		irregularRules: {
			'person': 'people',
			'man': 'men',
			'child': 'children',
			'sex': 'sexes',
			'move': 'moves',
			'cow': 'kine'
		},

		uncountableRules: [
			'equipment',
			'information',
			'rice',
			'money',
			'species',
			'series',
			'fish',
			'sheep'
		],

		pluralize: function (word) {
			var lowerCaseWord = word.toLowerCase();
			var thisRegExp = '';
			if(iwp.util.inArray(lowerCaseWord, iwp.inflector.uncountableRules)) {
				return word;
			}

			else if(iwp.util.isDefined(iwp.inflector.irregularRules[lowerCaseWord])) {
				return iwp.inflector.irregularRules[lowerCaseWord];
			}

			for(rule in iwp.inflector.pluralRules) {
				thisRegExp = new RegExp(rule , "gi");
				if(thisRegExp.exec(word)) {
					return word.replace(thisRegExp, iwp.inflector.pluralRules[rule]);
				}
			}
			return word;
		},

		singularize: function(word) {
			var lowerCaseWord = word.toLowerCase();
			var thisRegExp = '';

			if(iwp.util.inArray(lowerCaseWord, iwp.inflector.uncountableRules)) {
				return word;
			}
			else if(iwp.util.inArray(lowerCaseWord, iwp.inflector.irregularRules)) {

				for(i in iwp.inflector.irregularRules){
					if(iwp.inflector.irregularRules[i] == lowerCaseWord){
						return iwp.inflector.irregularRules[i];
					}
				}
			}

			for(rule in iwp.inflector.singularRules) {
				thisRegExp = new RegExp(rule , "gi");
				if(thisRegExp.exec(word)){
					return word.replace(thisRegExp, iwp.inflector.singularRules[rule]);
				}
			}

			return word;
		}
	}
});