in case的用法 ,desired的词性是什么?

in case
(1) (just) in case加句子 表示"以防万一""因为可能发生某事"
比如: It may rain-- you'd better take an umbrella in case it does.可能下雨,你最好带把伞以防万一真的下雨
(2) in case of sth /doing sth 如果发生某事
In case of fire, please ring the alarm bell
如果遇到火灾请按警铃

desired 是形容词 , 动词和名词是desire
n. desire for sth/to do sth
v. desire sth

in case of doing sth.以防万一
desire动词 接should虚拟