这个句子正确吗?If i know something that I cannot tell anyoneIf i know something that I cannot tell anyone 这句里用know还是用knew?为什么？这个不是假设句子吗？

这个句子正确吗?If i know something that I cannot tell anyoneIf i know something that I cannot tell anyone 这句里用know还是用knew?为什么？这个不是假设句子吗？ I don't know why I feel so tired.这个句子有错吗? 请问 I feel that I’m so tired.这个句子是正确的吗?RT , 这个句子的语法正确吗?i'd like to know what sport do you like i don't know why did she live there.这个句子正确吗?请分析 i know where have you been to.这个句子正确吗? well did I know him and well did I know me 这个句子正确么 ”if I have a hat to your name,I will contact you“这个是正确的句子吗?如果是, I don't know where to begin.帮我分析下句子、、这个句子是不是正确? if you cando it,so can I.if you can do it,so can I.这个句子对吗?if要不要? “so that+从句”可以作为一个独立的句子存在吗比如说：So that I can study well.这个句子是否正确? well did i know him and well did i know me这个句子正确吗?这是一道选择题：Well_____ know him and well ______know me.A.I did; he did B.did I ; did he I don't know.How can I make the vegetables grow so well?把这个句子合并为宾语从句 i want to know (这个know是什么词性?)那这个句子这样能算一句话吗？ I am who i am ,SO who am i 句子正确吗?不晓得咋翻译~ I know ’If I have you ,so I 'm near the happiness. If mary wants to go,so will i 这个句子应该是表示假设啊,那为什么没有用虚拟语气啊? i dont know if he will come tomorrow / i dont know if he comes tomorrow哪一个正确