這句英文有無問題呢?

"go over" 跟 "go through" 都可以用 :-)

"go over"的意思是小心的查看.

From: http://www.diclib.com 可以找到"go over"的意思及用法. ==> If you go over a document, an incident, or a problem; you examine, discuss, or think about it very carefully.
Example: I won't know how successful it is until an accountant has gone over the books. 我唔清潔成功沒有, 直至會計師查看過帳簿.

好多謝你既意見.因就是有D人喜歡自己下屬做D無謂野,佢先開心law.唉~

Your sentence is perfect.

Go over is the same as go through.
Below are their dictionary definitions
go over
examine or check something carefully;
study something carefully, especially by repeating it.

go through
look at or examine something carefully, especially in order to find something;
study or consider something in detail, especially by repeating it.

Shall we go over this document together? ---- It does not sound very formal. It is an appropriate request or offer to somebody like your boss.

In modern English, shall often sounds formal and old-fashioned. In British English, shall is still used with I and We in questions or when you want to make a suggestion or an offer.
e.g.
Shall I send you the book?
What shall we do this weekend?

Examples of formal use of shall:
Candidates shall remain in their seats until all the papers have been collected.
Passengers shall wear seat belts during the course of the journey.
Thou shall not kill.

To show determination:
We shall overcome.
He shall succeed.

I think your sentence is perfectly fine. Go over means looks through the details.

1. "go over"唔係太合適."go over"係指一個狀態,唔係一個動作.用"go through"會理想d.
2. 英文0黎講"shall"係好formal好formal 0既用法.我唔知道你老闆係咪好似英女皇咁尊貴,否則可以唔駛咁客套同嚴肅,你可以話:
Should we go through this document together?