There are two types of partner visas:
You must in Australia at the time of application and grant for the Partner (subclass 820/801) visa application. You must be outside Australia at the time of the first stage of the application and grant for the Partner (subclass 309/100) visa application. The second stage of the Partner (subclass 309/100) visa may be granted whilst you are in or outside Australia.
You should be able to provide the following
You must prove that: