Explain grammar errors and corrections in a Spanish, French, German, Portuguese, or Russian sentence, with the reasoning behind each fix.
A red underline tells you something's wrong. It doesn't tell you why, and a learner who fixes the same mistake five times without ever learning the underlying rule just keeps making it in every sentence the underline didn't catch. This tool corrects what you actually wrote, in your own words, and explains the grammar behind every fix so the correction transfers to the next sentence instead of staying stuck to this one. My sentence or sentences are [MY_SENTENCES]. Language is [LANGUAGE:select:Spanish,French,German,Portuguese,Russian]. Level is [LEVEL:select:A1 (beginner),A2 (elementary),B1 (intermediate),B2 (upper intermediate),C1 (advanced)]. Correct [MY_SENTENCES] in [LANGUAGE], preserving the original meaning and intent rather than rewriting into a different sentence entirely. For each error found, quote the exact phrase that's wrong, give the corrected version, and name the specific rule it broke, gender or case agreement, wrong preposition after a verb, a tense or aspect that doesn't fit the context, word order carried over from English, or anything else concrete rather than a vague "grammar issue." Group corrections by type if more than one error shares the same root cause, since seeing three separate mistakes that all trace back to one misunderstood rule teaches that rule faster than three isolated fixes would. Leave anything that's already correct alone, don't invent a stylistic tweak just to have more to say. Close by naming the single error type in this set most likely to recur in future writing, based on what actually shows up here, not a generic warning.
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Get Early AccessA red underline flags a mistake and stops there. It doesn't say why the sentence is wrong, which means a learner can fix the same underlined word five times and still make the identical mistake in a sentence the underline never caught, because the actual rule never got explained. This tool corrects what you wrote in your own words and names the rule behind every fix, gender agreement, wrong preposition, a tense that doesn't fit the context, English word order leaking through, so the fix generalizes past this one sentence.
Paste [MY_SENTENCES], set [LANGUAGE] to Spanish, French, German, Portuguese, or Russian, and choose [LEVEL]. Corrections group by root cause when more than one mistake traces back to the same misunderstood rule, since three isolated fixes teach less than seeing the pattern behind all three at once. Anything already correct gets left alone, no invented stylistic tweaks just to pad the response.
Italian already has its own dedicated error correction generator in this library, built around traps specific to that language, like required double negation. This tool covers the same job for the five languages without one yet. For sentences that are grammatically fine but built on an English habit that doesn't transfer, like a wrong preposition that isn't technically ungrammatical, the common mistakes by native English speaker generator catches that adjacent category instead. Open a set in the Dock Editor to work through the corrections next to your original draft.
Fill in [MY_SENTENCES] with the exact text you wrote, one sentence or a short paragraph.
Set [LANGUAGE] to Spanish, French, German, Portuguese, or Russian.
Choose [LEVEL] from A1 through C1 so the explanation depth matches where you are.
Check which mistakes share a root cause, that grouping is the fastest way to actually fix the underlying rule instead of just this one sentence.
Get a real explanation for why a sentence is wrong, not just a corrected version with no reasoning attached.
Paste a paragraph written during practice and get every error grouped by the rule it broke, so recurring mistakes actually surface as patterns.
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