動詞後接原型動詞

ask,make, suggest , propose
recommend,move,advise
ask, require,request,demand,desire
oder,command,stipulate
insist,advise,urge

S V + (that) + S (should) +  Vo
                                              + be Ved/en

He asked that they ( should ) be allowed to use a dictionary .
他要求准許他們用詞典。

important,vital,imperative,essential,crucial,necessary
urgent,desperate,compelling

It  is  adj  that  S + Vo
                               + be Ved/en