在英语中.有相当一部分的动词的过去式及过去分词的构成是没有规则的,但这些没有规则的过去式及过去分词中,大多数还是有规律可循的。现归纳如下:1.tell,sell 等 ell 结尾的词:把 ell 改为 old。如:tell→told→told,sell→sold→sold.etc.但smell 是例外:smell→smelt→smelt2.keep.sleep,sweep 等 eep 结尾的词:把eep 改为 ept。如:keep→kept→kept,sleep→ In English, there are no rules for the composition of the past tense and the past participle of a considerable part of the verb, but most of these non-regular tense and past participle are regular. Now summarized as follows: 1.tell, sell, etc. ell at the end of the word: the ell changed to old. Such as: tell → told → told, sell → sold → sold.etc. However, the smell is an exception: smell → smelt → smelt2.keep.sleep, sweep and other eep at the end of the word: the eep changed to ept. Such as: keep → kept → kept, sleep →