used to describe a particular form of a verb when it is not related to the main form of the verb, for example ‘went’ as the past tense of ‘go’ 不规则词形屈折,异干互补(如 went 作为 go 的过去式) Some of the verbs have suppletive forms for the past tense. 有些动词有过去时态的补语形式。