English is not my mother tongue, and I’m aware I’m still making a lot of grammar mistakes. When you read texts on the web, you’ll quickly notice, the mistakes are made also by the native speakers.
What’s more, for an English-language learner these grammar mistakes seem basic. For example, confusing “your” with “you’re”, or “their” with “they’re”.
At first, it seems strange (at least from a perspective of a foreigner), but the simple explanation is that many people use mostly the spoken language, and the words they confuse sound almost the same.
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