|We use already to say that something happened sooner than expected.
Already usually comes before the main verb or between an auxiliary or modal verb and the main verb.
|I am sorry, she has already gone home.
The film has already started.
She's only four years old and she can already read.
|We use yet in questions or negative statements to talk about things that we expected to happen before now.||Have you finished work yet?
I haven't seen the new James Bond film yet.
Have you met our new colleague? ~ Not yet.
|Yet usually comes at the end of the sentence.
We usually use the present perfect with already and yet.