I didn't know if he would come.为什么要用过去将来时?“我不知道他是否会来”好像不是过去某一时间看来将要发生的动作或存在的状态,其中“是否会来”可以体现出将来,但整句话好像都没能体现

If I Didn'T Know Better 歌词 英语翻译说错 ,应该是I didn't know if he would come和i didn't know if he would be coming 翻译上有什么区别. I didn’t know If I Didn'T Know Any Better 歌词 He didn't know if he had passed the exam.这句话从语法上来讲对吗?didn't know 能与 if 句末需要加or He didn't know if he had passed the exam or not. She didn't know back soonA weather he would beB if he will come I Didn't Know 歌词 I don't know if he will come tomorrow i think he if he free ___ the meeting ,he would have attended.A If he knewB If he hadn't knownC Had he knownD If he didn't know 英语翻译I didn‘t know you were coming,so I didn’t buy any beer.(If…虚拟) I don't know if he ____(be) free tomorrow. I don't know if he ____ ( come ) I don't know if he_.if he _home,please let me know.(return). I know .I know if I should go?but he Won't!中文 I didn't know I was cheating. I don't know if he ___.if he ____,please tell me .(come) _____(If /whether) I won or lost ,she didn't want to know . I asked if he freaked out every time he didn't something new.