正如您所知，我们一直在尝试联系他。

___As ___you ___know, we have been trying to contact him.

正如您所知，我在纽约。

___As ___you ___know, I am in New York.

正如您所知，我们的办公室下个月要搬迁。

___As ___you ___know, our office will move next month.