• 例1：I have written a novel. （我写完了⼀部⼩说。）（现在完成时）
• 例2：He said he had written a novel. （他说他已经写完了⼀部⼩说。）（过去完成时）
• 例3：I will have finished the work by tomorrow. （明天的时候我就会完成这项⼯作了。）（将来完成时）
• 例4：He will have finished the work by tomorrow. （明天的时候他就会完成这项⼯作了。）（将来完成时）
• 例5：He said he would have finished the work by the next day. （他当时说他第⼆天就会完成那项⼯作。）（过去将来完成时）