reason有原因;道理;理智;等意思，那么你知道reason的过去式是什么吗?下面一起来学习一下reason的过去式以及reason的用法和例句，希望对大家的学习有所帮助!
reason的过去式及其它时态
reason的过去式:reasoned
reason的复数:reasons
reason过去分词:reasoned
reason现在分词:reasoning
reason第三人称单数:reasons
reason的用法和例句
1、a bona fide reason
真正原因
2、He had reason to be pleased with himself, since he was one of only seven out of forty candidates who were successful.
他有理由沾沾自喜，因为他是40个候选人里仅有的7名成功者之一。
3、I really don't see any reason for changing it.
我真的不明白为什么要改变它。
4、For some unaccountable reason, the letter never arrived.
不知何故，那封信始终未寄到。
5、There is no reason that you shouldn't tell them in advance when you are going.
你没理由不事先告诉他们你打算要走.
6、Lack of security of tenure was a reason for many families becoming homeless.
居住权得不到保证是许多家庭居无定所的一个原因。
7、He thought of a reason to explain away his failure.
他想出一个理由为他的失败辩解.
8、I had a bad night; I went to bed early enough, but for some reason I couldn't get off to sleep.
我夜里睡得很不好, 上床相当早, 可是不知为什么睡不着.
9、There may be some other reason for it.
恐另有原因.
10、That is ( the reason ) why he raised the question.
这就是他所以提出问题的原因.
