It's "What did I tell you?" However, it could also be, "Isn't this [exactly] what I told you?"
The correct phrase is "What did I tell you." "Told" is the past tense of "tell" and is used incorrectly in this context.
The past form of "tell" is "told," and the past participle is also "told."
The present tense of "told" is "tell."
The past participle of "tell" is "told".
The past participle of "tell" is "told."
The past participle of "tell" is "told."
The past participle of "tell" is "told."
The past participle of "tell" is "told".
The past participle of "tell" is "told."
The present tense of "told" is "tell."
The past tense of "tell" is "told." For example, "I told him the story yesterday."
The correct phrasing would be: "Why did you tell them?" The verb "tell" should be in the past tense form "told" in this construction.
He was told.
The past participle of "tell" is "told."
William Tell Told Again was created in 1904.
The past tense is told.
The base form of the verb "told" is "tell."
The past form of "tell" is "told," and the past participle is also "told."