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，Ive 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 youve worked for a year youll get a rise.
他说：你工作一年之后，会加工资。相当于：
He said that when Id worked for a year Id get a rise.
他说我工作一年之后会加工资。
She said，Ill 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 shed lend me the book as soon as shed 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。