巧记不规则动词（2）过去式、过去分词含ought或aught
bring, brought, brough
buy , bought, bought
think ，thought，thought
fight,fought,fought 与。。。作斗争
teach， taught, taught
catch, caught, caught
记这六个单词，容易把ought或aught搞混，仔细观察发现，过去式和过去分词含aught的，原形有ch或tch，抓住这点，就不会混淆了，顺口溜：
ought、
bring, brought, brough
buy , bought, bought
think ，thought，thought
fight,fought,fought 与。。。作斗争
teach， taught, taught
catch, caught, caught
记这六个单词，容易把ought或aught搞混，仔细观察发现，过去式和过去分词含aught的，原形有ch或tch，抓住这点，就不会混淆了，顺口溜：
ought、