i am sorry to have kept you waiting.

题目

i am sorry to have kept you waiting.
i am sorry to having kept you waiting.
He apologized not having wait for me.现在分词与不定式的完成式都是表示在谓词动作之前发生的,第二个句子是否成立?第三个句子是否正确

答案

第一个句子是正确的第二个句子是错误的I am sorry to have kept you waiting.I am sorry to中to是不定式符号,因此后面可接do或have done不定式的完成式,表示在谓语动词动作发生前就已经发生了.第三个句子是错误的He ...