Косвенная речь
Present Simple изменяется на Past Simple
She said :"I run every day"
She said that she ran every day.

Present Continuous изменяется на Past Continuous
He said:"I am doing my homework ".
He said that he was doing his homework.

Present Perfect изменяется на Past Perfect
I said: " I have just passed my exam,"
I said that I had passed my exam.

Past Simple изменяется на Past Perfect
You said:" I was there yesterday"
You said that you had been there the day before.

Past Continuous и Present Perfect Continuous изменяются на Past perfect Continuous
They said :" We were swimming in the ocean".
They said that they had been swimming in the ocean.
She said :"I have been translating the article for 2 hours".
She said that she had been translating the article for 2 hours.


Future Simple изменяется на Future in the past
He said :" I will be at home"
He said that he would be at home.