That sentence is bad grammar.

那个句子是很差的语法。

youdao

I've seen bad grammar, but this takes the cake.

我看到过很糟糕的语法，但没有看到过这么糟糕的。

youdao

He had a careless tongue and often used bad grammar.

他说话很粗心，常常不符合语法。

youdao

So in a sense, that's a good infinite loop that is as long as you're using the program, it's constantly checking your grammar and spelling, and underlining things, so infinite loops aren't necessarily bad if the objective is actually being met.

因此从这个意义上说，这是个好的无穷循环,只要你开始使用这个软件，它不停的检查你的语法，拼写或者下划线等，通过这种方式达到目标的时候,这样的无穷循环并不总是坏的。

哈佛公开课 - 计算机科学课程节选

Bad grammar can seep into your everyday life and become more than a slight nuisance.

FORBES: Digital Over-Sharing, Constant Complaining And Other Top Mobile Etiquette Mistakes

Bad writing and bad grammar just should not be employed in any writing.

FORBES: As Deficit Soars, Congress Suggests New Tax On Text Messages

The related, and peculiarly British, appetite for nit-picking also reared its head with Lynne Truss's bad grammar diatribe Eats, Shoots and Leaves.

BBC: News - The noughties in literature