get the databases that are not part of any availability groups (AlwaysOn)

Hello,

I am trying to all databases that are not part of any availability groups (AlwaysOn) using T-SQL.

i tried but i found only 1 way to do it 

first is to get all databases on the server 

Select name from sys.databases

then get all databases that are part of the availability groups

Select * from sys.availability_databases_cluster

then get the differences manually 

is there is any statement that can get the databases that are not part of any availability groups (AlwaysOn) directly ?

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