Look at these examples.
The adjective doesn’t describe the verb, it describes the subject.
When used with the present perfect. Still is used to say that something in the present hasn’t finished. She still hasn’t arrived. I still haven’t bought a ticket. Already is used to talk about something that happened sooner than expected. I have...
The position of these adverbs when used with the present perfect.
With an adjective before it you can use an article. You can also leave it out.