My sister got married last year.
I haven’t done my homework yet.
I've just finished this great book about WWII.
I’ve never been to Europe.
I didn’t have time to do my homework.
I’ve already seen this film twice.
Past experience. The exact time is not mentioned.
Recent past experience.
We usually use "already" for emphasis.
Past experience. The exact time is mentioned.
We usually use "yet" for emphasis.
Finished past action.
