英语过去式 我看句子总是分不清was wasnt were weren't did didn't could could

did you?didn't you?weren't you?were you?这些词写在句子最后分别是什么意思 用“was”“wasn't”“were”“weren't”“is”“are”各造一个句子 英语 wasn't.weren't.didn't区别 but still we weren‘t no sure we could beat them这句为什么用过去式?wer He didn't think he could pass the exam.反意疑问句是did he?还是didn't 英语填空题：读一读,选一选,填一填 was.were wasn't ,weren't ,is,are ,isn't ,a were weren't was called的一般现在时形式 英语中什么时候该加is are were was .一直分不清,句子中总是多加, 改句子（英语题目）.1：He didn't know how he could get there .(改为简单句)2: 帮我用were are weren't was is wasn't some any 填在下面的括号里 She was still a____.She could even speak.She didn't die. i didn't know this was something i could do until i got my r