过去/将来一般时用延续性或瞬间性,如I will keep it in mind.延续性/I will lock the door.瞬间性
现在一般时用延续性,如I like it.如果要翻译如我开门这种瞬间性,就要用过去时I opened the door.
过去/现在/将来进行时用延续性,如I will be reading a book at that time.
过去/现在/将来完成时用瞬间性或延续性,如I have closed the window.瞬间性/I have read the book.延续性/I will have studied English for 6 years when I graduate from the middle school.延续性.