Introduction
1.If the reporting verb is in the past form (said, told...), you must change the tense.
Example: Peter said, "Carol is a nice girl." Peter said (that) Carol was a nice girl.
2. When you form the reported speech, you must pay attention that the pronouns refer to the correct person.
Examples:
Susan said, "My parents are amazing doctors."
Susan said (that) her parents were amazing doctors.
Tom said, "I like black cars best."
Tom said (that) he liked black cars best.
They said, "We went swimming with our friends."
They said (that) they had gone swimming with their friend.
Jack said, "David told me the truth."
Jack said (that) David had told him the truth.
3. Expressions of time and place must also be changed.
Example: