如“I forgot to do my homework" 作业现在已经没有做！而用于现在完成时，表事情已经发生且对现在有影响强调结果、影响。
如”I have forgotten to advise him to my party,he is very mad with me !"强调结果——他生气了！只要结合情景很容易区分的！加油！
匿名回答于2020-04-01 15:22:26
