“You can tell that she's had work done.”
You're watching a TV show on TV with your friend. The actress on the show is almost 60, but her face looks like a doll's face. You comment to your friend about how unnatural she looks.
You can tell that she's had work done.
When you "can tell" something, it means that you know it based on something you saw:
I can tell that you're lying to me.
Could you tell I wanted to leave?
You can leave "that" out in casual conversation, but in formal speaking or in writing you should definitely include it:
I can definitely tell that you're improving.
Use "___ can tell ___" to talk about things that someone noticed out on their own. Don't use if for things that someone heard from other people. In that situation use a phrase like "I heard ___":
I heard you and Desmond weren't getting along.
The phrase "___ has had work done" means that a person has gotten cosmetic surgery. Cosmetic surgery is a kind of surgery that a person gets to make themself look better. Some examples of cosmetic surgery include:
- a face lift (reducing wrinkles in the face by pulling the skin tighter
- liposuction (getting fat removed)
- a "boob job" (breast enlargement)
You can gossip about someone's cosmetic surgery by saying that they've "had work done" or just "had work":
Do you think she's had work done?
Look at his face. He's definitely had work.
This phrase is a little rude, though, so you usually wouldn't use it when talking directly to the person who got cosmetic surgery.