I've seen it.
I've seen that.
I have seen a UFO.
I wish I had seen her.
I have seen her before.
She has never seen him.
They were seen to go out.
I haven't seen him lately.
I haven't seen Tom lately.
Have you ever seen a whale?
I haven't seen you in ages.
I've never seen a real cow.
I haven't seen you for ages.
I have seen that girl before.
I've never seen a live whale.
I've never seen him in jeans.
I haven't seen Tom since 1988.
Have you ever seen him swimming?
I haven’t seen you for a while.
I've never seen a whale that big.
Have you ever seen a car accident?
I haven't seen you in a long time.
I've never seen him wearing jeans.
I haven't seen him for a long time.
I've never seen such a large whale.
He explained in detail what he had seen.
I've never seen anything like this before.
Nancy had never seen a giant panda before.
Tom hasn't seen Mary for more than a year.
I've never seen him really get down to work.
She told him that she had seen me there last week.
Seen from the sky, the river looked like a huge snake.
Seen from a distance, the big rock looks like an old castle.
She had never seen New York before, so I offered to show her around.
I just want to let you know that I think you're the most beautiful woman that I've ever seen.