我们人太多 英文。。。

很简单：

There are too many of us.

美国人或许会说"you see,we have too many people…"

我们(中国)人太多的话就是
we have/got too many people

其他情况的就用楼上几位给的.

We got too many participants. There are too many members in our group. 完毕

we have too large a population

楼上三位说的都对额……原本还想补充的……没机会了……您就挑一个吧~