can't与couldn't 的用法I can't give you anythingI couldn't give you anything那句是对的啊 这两句意思有不同吗?

couldn't与can't的区别! can't与couldn't的区别 can't与couldn't 的用法I can't give you anythingI couldn't give you anything那句是对的啊 这两句意思有不同吗? 请问英语中couldn't wouldn't needn't mustn't的区别与用法? I can't agree more的用法 can't too与couldn't too的区别Paul is kind,hardworking and intelligent,in a word,I can't think too highly of him.(怎么夸都不为过).能否用couldn't? As she was very weak,she couldn't move这里的couldn't与can‘t区别,couldn't表示过去时? can’t / couldn’t have may not/can't/couldn't/needn't/mustn't举例区别意思和用法 请问find后句子的时态用法,You will often find your demands couldn't be met.为什么要用couldn't 而不是can't? can`t与mustn`t意义和用法的区别 I can`t stand this class any more.与I couldn`t agree more!这两个 句型的区别,难道只有语义的区别吗? i couldn't agree I couldn't help i couldn‘t是什么意思 not until 用法I __watch TV until I finish my homework.A.could B.couldn't C.can D.can't can’t have been与couldn’t have been的区别? could I .?疑问句的否定回答是哪一个?A couldn't B mustn't C can't