Diagnose Grammar Errors in My Writing

You can feel something is off in your writing but can't say what. Paste a passage and this acts as a grammar coach: it finds each error, labels it by type, explains briefly why it's wrong, then hands back a corrected version. It finishes by naming your three most frequent mistake patterns so you know what to drill.

Act as a professional grammar coach for {TARGET_LANGUAGE}. I will paste a piece of my writing below. Identify every grammar error, classify each one by type (e.g. subject-verb agreement, wrong tense, incorrect article use), and explain in one or two sentences why it is wrong. Then provide a corrected version of the full text. After the corrections, give me a short summary of my three most frequent error patterns so I know what to focus on in future practice. Here is my text:

{MY_TEXT}