①当主语后是【be动词，can】时，直接把be动词（am is are），can提前到句首；
②当主语后是动词时，直接在句首加do 或 does ，后面的动词显原形
③碰到some，改成any;碰到“第一人称”改成“第二人称”【I/we-you;my/our-your; 】
④其它照抄。
★变否定句：
①当主语后是【be动词，can】时，直接在be（am is are）动词，can后面加”not”，
②当主语后是动词时，直接在动词前加don’t 或 doesn’t，后面的动词显原形，
③碰到some，改成any;
④其它照抄。
一般疑问句
1.I am cleaning the windows now.
2.She can play the guitar.
3.There are some flowers in the vase.
4.The sun is a circle.
5.We need some masks.
6.They like singsing.
7.Yang Ling and her parents live in a new house now.
8.I put a book on my head.
9.My parents read newspapers on Sundays.
10.I have a tent..
11.She has a sofa.
12.They like going swimming.
否定句句
1.I am cleaning the windows now.
2.She can play the guitar.
3.There are some flowers in the vase.
4.The sun is a circle.
5.We need some masks.
6.They like singsing.
7.Yang Ling and her parents live in a new house now.
8.I put a book on my head.
9.My parents read newspapers on Sundays.
10.I have a tent..
11.She has a sofa.
12.They like going swimming.
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