Can I renew TN status while my 485 pending?

8老師:

1. I am working on TN status, and now waiting for EAD and green card under family-based immigration (parent of US Citizen)

2. My TN expire in September 2021.

3. Can I renew TN while my 485 pending? I do not know when EAD can be approved. If later than September, I have to stop working. 

多謝8老師.