写出sell、promise、duy、leave、show的过去式、过去分词、现在分词和第三人称单数

问题描述:

写出sell、promise、duy、leave、show的过去式、过去分词、现在分词和第三人称单数

fly-flies-flying-flew-flown put-puts-putting-put-put cancel-cancels-英语中有些动词的过去式和过去分词形式变化不规则,可分为五种情况。 1.

sell sold sold selling sells
promise promised promised promising promises
duy bought bought buying buys
leave left left leaving leaves
show showed shown showing shows