把陈述句变成一般疑问句要看句子的类型。如果句子中有系动词be,情态动词can,may,might之类的，就把这些动词直接提前就可以了。如：
1.He is a student. Is he a student?2.He can play the paino. Can he play the piano?其他的句子，则需要加上助动词do,did,does，如：
1.Lily agrees with you. Does Lily agree with you?当然，其中的时态、人称都要自己注意咯。
在英语语法中，句型转换是指将一个句子改写成另一种形式或结构，以达到表达更准确或丰富的目的。以下是常见的句型转换方法归纳及例句：
1. 反义疑问句法：将陈述句转化为反义疑问句
例句：She is a teacher, isn't she?
2. 倒装句法：将主谓语序调换为谓主语序
例句：Out came the sun.
3. 引导词改变：用不同的引导词来改变句子结构和含义
例句：Although it was raining, we still went for a walk.
4. 从句转换：将主从复合句转化为简单句或并列句
例句：He said that he would come, and he did.
5. 被动语态转换：将主动句改为被动语态
例句：The book was read by her.
6. 多重否定句转换：将多重否定改为肯定或单一否定
例句：I don't have no money. (改为) I don't have any money.
以上是常见的句型转换方法归纳及例句，需要注意的是，在转换句型时需要保证语法和意思的正确性。
