isn't

英 [ˈɪznt]

美 [ˈɪznt]

is not 的常用口语形式

Collins.5

柯林斯词典

There! Isn't that your umbrella?
喏，这不就是你的那把雨伞？
It's past the appointed time. Maybe he isn't coming.
约定的时间都过了，别是他不来了吧？
Isn't it about time that you pulled your finger out?
现在到了你该赶紧动起来的时候了吧？
She's quite pretty, isn't she?
她长得挺美，不是吗？
This is another half-baked scheme that isn't going to work
这又是一个不靠谱的计划，是不会成功的。
Awfully hot, isn't it?
非常热，是不是？
What is it then? Something's up, isn't it?
那是怎么回事呢？出问题了，是吗？
Not all is perfect, but it isn't for want of trying.
一切并非无可挑剔，但已经竭尽全力了。
Merely because you believe a thing is right, it isn't automatically so
事情不会仅仅因为你相信它是对的，就会必然如此。
'Isn't this marvelous?' she cooed.
“这是不是太不可思议了？”她低声说。