The students proposed that everyone bring a new book.這類句子中間省了(should)bring,但請問that可省嗎?

"that" introducing a noun clause which is the direct object of the sentence can be omitted.
~ The students proposed everyone bring a new book.  (subjunctive)
~ The students proposed everyone should bring a new book.  (British English)
~ The students proposed everyone to bring a new book. (X)

本句句型是S.+ V. +O，The students proposed everyone bring a new book.若將that省略，請問主要子句為何?有可能是The students proposed, everyone bring a new book.

其次我舉that子句當主詞更清楚，That we go to school is our current job.若將that 刪除，請問主要動詞是go 還是is?

不帶that 除非是使役動詞，例如;  I have someone do my home work.or I have my hair cut.句型是S.+ V. +O. + OC

the girl (that )wears a red skirt is my sister.此處that可省略，寫成the girl wearing a red skirt is my sister. Or the girl in a red skirt is my sister.

That cannot be used instead of who or which when they add more information.
(that) can be omitted.
Not should bring, but to bring, as preposition phrase, or infinitive phrase.


Hence:-eg:-The students proposed (that) everyone (to bring) a new book.