dare不仅可以做情态动词,也是一个verb,这是它与must之类的最大区别.
dare:
n.挑战,挑动
v.敢,胆敢
词形变化:
名词:darer 动词过去式:dared 过去分词:dared 现在分词:daring 第三人称单数:dares
例句与用法:
1.情态动词用法：
How dare you say so?
你怎敢这样说?
2.动词用法：（这个例句中,dare同样是动词,但是和LZ给出的例句中的dare意思有差异）
He dared me to jump over the river.
他激我跳过河.
好了,以下是回答的补充：
dare
Function:verb 而作为动词仍有两种用法：
Inflected Form:dared ; daring ; dares or (auxiliary) dare
1.作为系动词：
verbal auxiliary :to be sufficiently courageous to *no one dared say a word* *she dare not let herself love G.B.Shaw*
intransitive senses :to have sufficient courage *try it if you dare*
2.作为及物动词：
transitive senses
（1） a :to challenge to perform an action especially as a proof of courage *dared him to jump*
b :to confront boldly :DEFY *dared the anger of his family*
（2）to have the courage to contend against,venture,or try *the actress dared a new interpretation of this classic role*