作业帮英语句子中把句子变化为否定句怎么变跪求
来源：学生作业帮 编辑：作业帮 分类：英语作业 时间：2024/05/16 08:13:31
英语句子中把句子变化为否定句怎么变跪求
1.看句子中有没有be (is/am/are...)或情态动词(can/will...)、助动词have/has/had (have /has/had done结构中或英国人表示有之意),有的话直接在其后加not.如 He is （not）a student.He can (not) swim.He has (not) been there.
2.若没有,则要在动词前加don't/doesn't/didn't(具体用哪个要看情况,第三人称单数用doesn't,过去式用didn't),特别注意加了以后,后面的动词都要用原形,如 He works here.--he doesn't work here.he worked here.--he didn't work here.
3.祈使句直接在句首加don't,如：Open the door.--Don't open the door.--Be early!= Don't be late!
另外还要注意：some 要变为any..暂时只想到这些.打字好辛苦!
2.若没有,则要在动词前加don't/doesn't/didn't(具体用哪个要看情况,第三人称单数用doesn't,过去式用didn't),特别注意加了以后,后面的动词都要用原形,如 He works here.--he doesn't work here.he worked here.--he didn't work here.
3.祈使句直接在句首加don't,如：Open the door.--Don't open the door.--Be early!= Don't be late!
另外还要注意：some 要变为any..暂时只想到这些.打字好辛苦!