We use 'yet' in questions and negative phrases. 'Yet' comes at the end of the phrase.
Haven't they finished yet?
No, they haven't finished the roof yet.
We use 'already' in positive phrases. 'Already' comes between 'have' and the past participle.
Oh yes, they've already built the walls.
Why don't say " Are they finishing " ??
royaltornado 2 months ago
OK, you showed the position of 'have' and 'yet' in statements, but what is the function of those words?
remond5 3 months ago