Question

What I told you? grammar correct​

Answer 1

Answer:

I told you is correct because the verb tell is used to take a person as a direct object. If you use the verb say, you would have to use the preposition to to denote that thing. For example: I said sit. You never say I told sit because then that would mean that you are telling the word “sit” something.

Answer 2

Answer:

what DID i TELL you ?

hope this helps