Oracions de relatiu
Relativo: defining.
I saw the dog which has only three legs.
Non defining:
Extremadura, where cherry trees grow, is a very warm region.
Reported speech
Reported speech: now - then, today - that day, yesterday - the day before, the day before yesterday - two days before, tomorrow - the next day, the day after tomorrow - in two days' time, next week - the following week, last week - the previous week, a year ago - a year before. this - that, these - those.
present simple - past simple, present continuous - past continuous, past simple - past perfect, present perfect - past perfect, present perfect continuous - past perfect continuous, past perfect - past perfect (no varia), condicional i continu no varien, futur - condicional, future...