What a Grammar Mistake Can Tell Us About Understanding
Not every mistake means the same thing. Some show a learner has not met a rule yet, some show they are applying a rule too widely, and some are simple slips. Reading the difference changes how we respond.
Saved in this browser only.
The questionWhat does a grammar mistake reveal about understanding?
“Yesterday I goed to the market.”
The quick reaction is to correct it: went, not goed. That is reasonable. But before correcting, it is worth asking what the mistake shows, because this one shows quite a lot.
A mistake can be a sign of learning
To say goed, a learner has to have noticed that English often adds -ed to talk about the past. They have taken that pattern and applied it to a new verb. That is real grammatical thinking. The learner has simply not yet stored went as the exception.
Compare that with a learner who says “Yesterday I go to the market.” This may suggest the past tense pattern is not yet in use at all when speaking, even if the learner can do it on a worksheet.
The two sentences are both “wrong”, but they point to different next steps.
The learner is using the past tense rule, and applying it too widely.
Next step: highlight common irregular verbs and give practice with them.
The past form is not yet appearing in speech.
Next step: more practice telling short past events with support, such as a sentence frame.
Three kinds of mistakes worth telling apart
- A rule not yet learned. The learner has not met the structure, or met it too briefly. Explanation and examples help.
- A rule applied too widely. Like goed or mouses. The learner understands the pattern but not its exceptions. Focused practice on the exceptions helps.
- A slip. The learner knows the form and usually uses it, but missed it this time, often when concentrating on the idea. A quick prompt such as “Yesterday I…?” is often enough for them to correct it themselves.
Correcting without discouraging
How a mistake is corrected matters as much as whether it is corrected. A learner who is stopped after every sentence may decide that speaking is risky and start giving shorter answers.
- Respond to the message first. “You went to the market? What did you buy?”
- Model the correct form in your reply. The learner hears went in a natural sentence.
- Choose what to correct. Focus on one pattern at a time rather than every error.
- Invite self-correction for slips. A raised eyebrow or “Yesterday I…?” lets the learner fix it themselves.
Takeaway
What educators can observe
- Is the mistake a rule not yet learned, a rule applied too widely, or a slip?
- Does the learner make the same mistake in writing and in speaking, or only in one?
- Can the learner correct it when prompted? If so, it is likely a slip rather than a gap.
Sources
Research referred to in this article. Links open the original publication or its official record.