一般疑问句大多是什么开头什么结尾,前面是no,后面就加上not的缩写n't就可以了.be动词随着人称变化,人称：你变我,我变你,他不变.
1.Yes,it is.No,it isn't.
2.yes,I am.No,I amn't.
3.Yes,they are.No,they aren't.