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Browse Rules: 6,150 matches

These are some of the errors that LanguageTool can detect. Visit the LanguageTool homepage to use it online.

Description Example Category
In a harry (hurry) Harry up! Grammar
in (on) Windows Is there a paint-like program in macOS? Grammar
in (on) weekdays In Friday afternoon, the President announced the embargo. Commonly Confused Words
in (on) vacation He is probably in vacation right now. Commonly Confused Words
in (on) Monday I work in monday. Grammar
in (on) Monday I work in Monday morning. Grammar
in (on) Facebook Check it in Wikipedia. Collocations
Impossible dates (April 31st, etc.) She will join us on June 31st. Semantics
Impossible dates (April 31st, etc.) She will join us on the 34th of Nov. Semantics
Impossible dates (April 31st, etc.) She will join us on July 34th. Semantics
LanguageTool 6.8-SNAPSHOT (2026-05-04 22:33:08 +0200)