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

Description Example Category
add an additional (add) Add an additional: Redundant Phrases
7 o'clock AM (7 o'clock) It's 7 o'clock a.m. Redundant Phrases
7 o'clock AM (7 o'clock) It's 7 o'clock AM. Redundant Phrases
12;30 a.m. (12:30 a.m.) It's 7,30 p.m. Redundant Phrases
AM in the morning (AM) It's 5 AM in the morning. Redundant Phrases
AM in the morning (AM) It's 5 A.M. in the morning. Redundant Phrases
PM in the evening (PM) It's 5 PM in the evening. Redundant Phrases
PM in the evening (PM) It's 1 PM at night. Redundant Phrases
PM in the evening (PM) It's 5 P.M. in the afternoon. Redundant Phrases
PM in the evening (PM) It's 1 P.M. at night. Redundant Phrases
LanguageTool 6.8-SNAPSHOT (2025-12-04 22:33:08 +0100)