public static function push($idx, $singular, $plural) 
    {
        self::_initialize();
        self::$_inflections[$idx][$singular] = $plural;
    }
public static function push($idx, $singular, $plural) 
    {
        self::_initialize();
        self::$_inflections[$idx][$singular] = $plural;
    }
public static function push ( $ idx , $ singular , $ plural ) { self :: _initialize ( ) ; self :: $ _inflections [ $ idx ] [ $ singular ] = $ plural ; }
Push an inflection

@param mixed  $idx      index
@param string $singular form
@param string $plural   form

@return null
Push an inflection