Meaning/Usage: This is used when you already told someone something and it came true

Explanation: This is commonly used when you give someone advice and they don't listen to you. Afterwards, the person you gave advice to did not get what they wanted, and if they had listened to you, they would have succeeded. In this case, you can use this expression.

"I knew that was a bad idea, I told you so."
"I told you so. You should have listened to me."
"You shouldn't be surprised, because I told you so."

A. "I should have listened to your advice."
B. "Why do you say that?"
A. "I tried that new restaurant and it was terrible."
B. "What did I tell you? I told you so."

Other Common Sentences

"I warned you."