What does 'I'm done pretending' mean? I am done -> passive-- No. 'Done' is used as an adjective. Does it mean 'I finish with pretending' ?-- Yes, 'I have finished with pretending.'
'When you're gone ......' you are gone -> passive.-- No, 'gone' is an adjective. Why not 'When you've gone .... '?-- That is OK, too.
But than I don't seem to get the difference between 'you're gone' and 'you've gone'? When do I know if it's an adjective or the passive? For example: told. Could that be an adjective? I'm told. (I have only known this sentence as a passive one, that somebody says you something.) Same with all other verbs.
A simple way to judge whether it's an adjective is to insert 'very' before it:
I'm very gone. (This may sound strange to you, but it is a reasonable statement in casual English) I'm very tired.-- OK (X)I'm very told. -- Meaningless. It must be a passive participle
A simple way to judge whether it is passive is to insert an agent with 'by':