As a teacher, it’s a common situation: your student wants to know the difference between two similar words. Often, you just don’t know the answer to the question. Most of the time, all you can do is use your own experience to make a guess.
This isn’t usually a great way to solve this problem—sometimes our intuition might just be wrong! Luckily, we can use something called a corpus—a collection of text, like magazine articles, research papers, and even transcriptions of people speaking to each other—to answer these sorts of questions.
In this article, I will briefly show how to use a corpus to compare the difference between two words. I will look at different registers, which are different language styles, like for writing a newspaper article versus talking to your friend. The two words I will look at are “but” and “however”.
TL;DR? Skip to the conclusion. But hopefully you’re nerdy enough to continue.
For one thing, “however” and “but” are different types of conjunctions (subordinating and coordinating), so they will be used differently. But to an ESL student, knowing that the grammar is different doesn’t help him know when and how to use it. This problem is made worse by the fact that many English textbooks and courses ignore the question of how completely.
I decided to put aside questions of grammar and use Brigham Young University’s Corpus of Contemporary American English (COCA) to look at different registers. This corpus includes transcriptions of spoken language. Because it contains language from many different registers, it was the right tool for this question.
I wanted look at different registers for the two words, so I just entered them in the search box like so:
For me, searching does take some time because I live in China. (All websites outside of China are very slow here.) Once the search is complete, it automatically shows me the results.
Results for “but”
Here is what a search for “but” returns:
It’s clear that it’s used most often in speech, and least often used in academic writing. Overall, though, we can see from the normalized word count1 (PER MIL) that it’s a very common word. Go figure.
Results for “however”
“However” is different:
The most obvious difference is that it’s mainly used in academic writing and maybe a little bit in magazine articles. This means that only students at a level to read magazine articles in English are likely to encounter this word.
The other thing that’s important to note is that “however” is a full 13 times less common than “but” in American English.
For students who mainly want to use English for speaking with others, focusing on learning “however” is not very useful. They probably won’t ever need to say it. “But” is 13 times more common. They might read it in some places, though, so at most they need to be familiar with what it means.
If we do teach it to students, we should teach them not just about the grammar but when to use the word. Exercises and examples should be based on reading and writing magazine articles.
At the very least, teachers should tell their students that we don’t use “however” very much when we speak—it’s mainly used for writing.
Using a corpus like COCA is a very useful tool to answer questions like these. As a teacher, this is information that you can’t really get anywhere else. If we can avoid teaching students vocabulary and grammar that isn’t useful to them, then we become better teachers. Using COCA to see the difference between “but” and “however” is just one example of a tool teachers can use to make their jobs easier.
Have any comments, questions or rants to send my way? If you know me personally, just give me a call or send me a text. Otherwise, you can email me.
When we “normalize” a number, it means we use math to make the numbers easier to compare with each other. Each word count is in the form of “per million words”: in one million words, you will see “but” 4,484 times.[return]