-Transform verbs into its corresponding past tense (backshift). Ex: "present continuous to past continuous".
·General truth in present: (My mother told
me the Earth is round).
·The present in a sense of future: (My
mother told me the comic con is on Saturday).
·An action that still affects to
the present such as the present perfect: "Mary said the interest for korean pop has increased".
-Exception: future simple: would.
•Present perfect continuous/past cont: past perfect continuous. May: might.
-Don't change: should, ought to, could, would, had better, mandatory subjunctive (She told me that I go to buy the whole Game of Thrones series).
-Focus and point of view vary, so the persons also change:
"She said she did not remember Voldermort's name". The person "you" normally transformed into "I".