“I haven’t met my parents for years,” he says → He says that he hasn’t met his parents for years.

“I don’t know how much it cost,” he tells her → He tells her that he doesn’t know how much it cost.

“I will come next year,” he told me → He told me that he would come the next year.

“I’ll help my mum with housework this weekend,” he said → He said that he would help his mum with housework that weekend.

“We shall overcome this difficulty,” they said → They said that they would overcome that difficulty.

“My father is a doctor here,” my friend said → My friend said that his/her father was a doctor there.

“I am going on holiday tomorrow,” the boy said to his neighbor → The boy told his neighbor that he was going on holiday the next day.

“You will have to finish all these exercises before next week,” the teacher said to his students → The teacher told his students that they would have to finish all those exercises before the next week.

“I came back here early yesterday,” she said → She said that she had come back there early the day before.

“I’ve broken the vase,” she said → She said that she had broken the vase.