Consider first example:
Thus, the major documents being considered by the Preparatory Committee might be placed on the FfD web site for comment.
- What's the rule for using "being" between "the major documents" and "considered"? Why don't they use "the major documents that/which are considered"? I know "being" is used for Present Cont. in Passive V. or as Gerund, but there's Present Simple in Passive V. regarding this sentence, isn't it?
And the second one:
A copy of a document to be used internationally may also have to comply with special rules.
- What's the rule for using "to be used" between "A copy of a document" and "internationally"? Why don't they use "A copy of a document that/which is to be used internationally"?