I saw three police cars this morning (it's still morning)
I've seen three police cars this morning.
Lucy have broken her leg, so she can’t go skiing.
Lucy has broken her leg, so she can’t go skiing.
Julie just has arrived! Come and say hello!
Julie has just arrived!
I haven't seen Julie already.
I haven't seen Julie yet.
Where did you be?
Where were you?
I didn't play volleyball since I was a teenager.
I haven't played volleyball since I was a teenager.
Prices didn't go up last year, but they already increased=підвищуватись this year.
Prices didn't go up last year, but they have already increased this year.
We did helped to wash the dishes. They're all clean now.
We've helped to wash the dishes. They're all clean now.
Have your business course started just?
Has your business course started yet? / Has your business course just started?
They've closed the factory=фабрика. Really? When has it happened?
They've closed the factory. Really? When did it happen?
