“他们看到我们的到来很高兴”用英语怎么说？

they were very happy when saw our coming.

好几种表达方法呢，比如they are very happy when they see us coming, 再如they are very happy when they see that we come....they are very happy to see us coming....
具体时态自己改吧

they were delighted(happy,pleased等等） to see us

They were very happy when we came here。

They are very happy to see us come here