I have written a rule for this mistake: “Para tu trabalha.” The correct form is: “Para tu trabalhares”. In this correct form, the verb is Personal Infinitive (infinitivo pessoal). The problem of my rule is on suggesting Personal Infinitive (infinitivo pessoal) for 2nd person of singular (tu).
Have you tried Check a LanguageTool XML rule? It will check your rule and find some issues, e.g. regexp_postag= doesn’t exist, it needs to be postag=. Then postag='eu|ele|ela|N..S000 won’t as it combines direct tokens like eu and POS tags like N..S000. You either need to write two rules, or use <or> as shown at Development Overview - LanguageTool Wiki.