Aff: I want to buy a car -> He said he wanted to buy a car
Neg: I don't have much time -> She told me she didn't have much time
Para oraciones imperativas:
Don't Shout! -> The teacher said not to shout
Sit down! -> The teacher told me to sit down
Para las preguntas:
What time is it? -> She wanted to know what time it was
Can you swim? -> She asked me if I could swim.
Nota: cuando una oración está ya en pasado, se cambia a pasado perfecto.
Example:
I promised to help Joanne move -> Jim said he had promised to help Joanne move