Some mistakes aren’t grammatical—they’re word choices, and interestingly, they sound “more foreign” to a native ear than a case or article mistake. It’s worth knowing the most common ones.
Translating “I am 25 years old” too literally
Ich habe 25 Jahre (a literal translation from Portuguese “I am 25 years old”) sounds strange—the correct form is Ich bin 25 Jahre alt (I am 25 years old, literally). Using haben (ter) instead of “sein” (to be) in this context is a classic error of direct translation.
Using wie where you should use "als"
When comparing different things ("taller THAN"), the correct form is "als" (größer als — greater than), not wie (used for comparisons of equality, "as tall AS" — so groß wie). Mixing the two is extremely common and immediately sounds foreign to a trained ear.
Overuse of sehr where a more precise adverb would sound better
Using sehr gut (very good) all the time, when there are more specific and natural words like "ausgezeichnet" (excellent) or "fantastisch" (fantastic), is a typical pattern of someone who still thinks in Portuguese and translates "very" in a generic way.
Confusing “kennen” and “wissen”
Both translate to “to know,” but in different contexts: “kennen” is used for people and places (ich kenne ihn — I know him), “wissen” is used for facts and information (“ich weiß das” — I know that). Mixing the two is a common mistake that immediately sounds unnatural.
Why this matters more than it seems
Minor grammatical errors (wrong article, wrong case) are very common and tolerated even among Germans from different regions. However, errors in word choice, even small ones, tend to draw more attention—because they sound like “mental translation” in real time, rather than natural fluency.
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