Why does grammar matter in real communication?
Grammar matters because it turns individual words into meaningful messages. In second-language learning, the goal of grammar instruction is to develop not only explicit knowledge (knowing the rules) but also implicit or automatized knowledge that can be used in real-time interaction [2]. That means grammar is what allows you to speak or write without stopping to think about every rule.
The practical use of grammar is also emphasized in teaching approaches that require learners to use grammar and vocabulary in purposeful communication [4]. In other words, grammar is not an end in itself; it is a means to express ideas clearly and accurately when you are actually trying to communicate something.
How do learners actually put grammar to use?
One study with high school students in Ethiopia found that real-life writing tasks and peer corrections were effective in helping students use grammar properly [1]. Students preferred collaborative learning and peer feedback over public correction of errors, and activities like gap-filling and text analysis were favored for learning grammar [1]. This suggests that grammar is used most effectively when learners engage with it in meaningful contexts and interact with others.
However, a study of university students in Hungary and Poland found that while some differences existed between the two contexts, the overall patterns of grammar learning strategy use were strikingly similar [2]. This indicates that learners across different countries may rely on similar approaches to master grammar, though the study did not measure how well those strategies work.
A separate study with fourth-grade English majors at the University of Anbar found no relationship between students' achievement and their use of grammar learning strategies, and the level of strategy use was medium [3]. This suggests that simply using more strategies does not automatically lead to better achievement, and other factors may be at play.
What does grammar look like in artificial intelligence?
Grammar also appears in the study of artificial intelligence. Researchers investigating pretrained language models (like BERT and RoBERTa) using construction grammar—a framework that treats grammar as pairings of form and meaning—found that these models can recognize the structure of a common English construction (the comparative correlative, as in “the more, the merrier”) but fail to use its meaning [5]. This shows that even advanced AI may grasp grammatical form without fully understanding the meaning that grammar conveys, highlighting that grammar's use is deeply tied to meaning in human language.
Sources used in this answer
The use of grammar in writing
Real-life writing tasks and peer corrections helped high school students in Ethiopia use grammar properly, and students preferred collaborative learning and peer feedback over public correction.
Investigating the Use of Grammar Learning Strategies in Hungary and Poland: A Comparative Study
University students in Hungary and Poland showed strikingly similar overall patterns of grammar learning strategy use, despite some differences between the two contexts.
Investigation the Relationship Between the Students' Achievement and the Use of Grammar Learning Strategies
Among fourth-grade English majors in Iraq, there was no relationship between students' achievement and their use of grammar learning strategies, and the level of strategy use was medium.
Grammar in use
Grammar teaching should require learners to use grammar and vocabulary in purposeful communication.
Explaining pretrained language models' understanding of linguistic structures using construction grammar
Pretrained language models can recognize the structure of the English comparative correlative but fail to use its meaning, indicating shortcomings in linguistic knowledge.