cooler coolest
uglier ugliest
是pretty吧?prettier prettiest
是little吧?less least 如果是litter(垃圾)的话在前面加more表示更多
more most
heavier heaviest
often没有 ,比often程度高的是usually和always
more interesting most intereating
more slowly most slowly
cool ugly peetty litter many heavy often的比较级和最高级是什么