“主語+介詞短語”作主語時的主謂一致

按英語習慣，介詞短語通常不用作主語，所以當主語后跟有一個介詞短語時，其后謂語動詞的數只與介詞短語前面的主語保持一致，而與介詞短語無關。如：

A woman with two children has come. 一位婦女帶著兩個孩子已經來了。

Everybody but you knows what was happening. 除了你以外，人人都知道出了什么事。

The teacher, together with some of his pupils, was cleaning the room. 教師和他的一些學生一起在打掃教室。

以下兩例中的 as well as 也可視為介詞，其后謂語與 as well as 前面的主語保持一致：

The students as well as the teacher were present at the meeting. 學生和他們的老師出席了會議。

I as well as they am ready to help you. 不僅他們愿意幫助你，我也愿意幫助你。