They say that Lisa has moved to a new house.
⇒ It is said that Lisa has moved to a new house.
They say that Lisa has moved to a new house.
⇒ It is said that Lisa has moved to a new house.
“Say” chia hiện tại → is said
Mệnh đề sau ở thì hiện tại hoàn thành (has moved) → giữ nguyên thì.