他没有掌握基本的语法规则。

He doesn't have mastery of the basic rules of grammar.

《柯林斯英汉双解大词典》

管理所需的词汇次序的语法规则。

Syntactic rules covering a required term order.

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有时当你非正式地说话时你可以忘记已经学过的语法规则。

Sometimes you can forget the grammar rules that you have learned when speaking informally.

youdao

And most linguists would argue "Yes," that languages are highly constrained in how they do things.

大多数语言学家们都会回答"是的",语言在很大程度上依赖于语法规则的使用

耶鲁公开课 - 心理学导论课程节选

So, long story short after this fairly arcane syntax, the end result is completely straightforward, do the following 10 times.

如此看来，这个长篇故事经过这个奇异的语法规则，简化后就立马简单明朗了许多，只需要重复做10次就OK了。

哈佛公开课 - 计算机科学课程节选

And one of the puzzles of syntactic rules, or one of the issues of them, is that different rules can conspire to create the same sentence.

语法规则的一个谜团或问题是,不同规则可以共同作用来产生同一个句子

耶鲁公开课 - 心理学导论课程节选