A、引导动词如果是一般过去时，直接引语中的现在完成时在间接引语中要变成过去完成时：
He said,‘I’ve been in England for ten years.’
他说：“我已经在英国住了十年了。”相当于：
He said that he had been in England for ten years.
他说他在英国已经住了十年。
He said,'When you've worked for a year you'll get a rise.'
他说："你工作一年之后，会加工资。"相当于：
He said that when I’d worked for a year I’d get a rise.
他说我工作一年之后会加工资。
She said,I’ll lend you the book as soon as I have read it myself.’
她说：“我一看完这本书就借给你。”相当于：
She said she’d lend me the book as soon as she’d read it herself.
她说她一看完那本书就借给我。
B、直接引语中的一般过去时通常也作同样的变化：
He said,‘I knew her well.’
他说：“我过去很了解她。”相当于：
He said that he had known her well.
他说他过去很了解她。
