Reported speech using noun clauses is a very difficult concept for many students to understand. I hope that this tutorial will help you to figure it out.
Basically, reported speech works like this:
“John is your teacher,” I told Jennifer. = Quoted Speech
I told Jennifer that John was her teacher. = Reported Speech
The difference between the two is the verb after John and the pronoun before father. The verb in quoted speech changes when the reported verb, “told,” is in the past tense. If it is in the present tense, the verb from the quoted speech will stay the same.
Also, the pronoun has to change from “her” to “your” because we are not talking to Jennifer anymore. See the video below for more details.