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 |
|---|---|---|
| Invalid date, like 'February 31, 2014' | It happened on November 31, 2014. | Semantics |
| Invalid date, like 'February 31, 2014' | It happened on Feb 30, 2014. | Semantics |
| Invalid date, like 'February 31, 2014' | January 10 – 1, 2016. | Semantics |
| Invalid date, like 'February 31, 2014' | January, 10 – 1, 2016. | Semantics |
| introduce for the first time (introduce) | We were introduced for the first time a week ago. | Redundant Phrases |
| Interval scale: doubling values ('twice as hot') | It's half as warm as it was yesterday. | Semantics |
| Interrogative proper noun agreement | How do Mozilla manage my data? | Grammar |
| Interrogative proper noun agreement | Do Tom really expect Mary to help him? | Grammar |
| intensive purposes (intents and purposes) | For all intensive purposes. | Commonly Confused Words |
| insure that (ensure that) | Please insure that you are registered with us. | Commonly Confused Words |
LanguageTool 6.8-SNAPSHOT (2026-05-04 22:33:08 +0200)