Today, I studied English with an online teacher. I said that the little boy is brushing his teeth with a toothbrush.
Sometimes I get confused about the difference between "teeth" and "tooth."
I don't think those words have any regularity. What's the best way to remember the difference between the two?
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I think you just have to remember, unfortunately. Tooth is singular (one), teeth is plural (more than one). We use the singular version in compound words like "toothbrush".
There's also foot -> feet, and goose -> geese. If you remember one, you remember them all. But don't get confused with boot -> boots or moose -> moose!
Also, there are some nouns where the singular and plural are the same, such as sheep, deer, shrimp, and fish (usually), plus many more. Here's a helpful article: https://www.grammarly.com/blog/parts-of-speech/irregular-plural-nouns/.
English is so weird sometimes でしょう？
@Ersatzjello, I think you'd enjoy this article: Insanity of the English Language
Amie (@schmamie) @SEQ77 thank you for sharing！I'll check this URL. @Ersatzjello YES....!English is so weird sometimes...うぐっ...!