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I have already (past participle)
I already (simple past)
I feel like when I'm reading literature or any serious writing, the present perfect is always used with "already". I would guess that this use is preferred, and I always make the effort to use it over the alternative.
However, I often hear the simple past used with "already" in conversation, as in "I already saw the movie." What is the status of this usage? Is it "acceptable", colloquial-only, really bad? It sounds really grating to my ears, but I'd like to make sure.