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Rule "in (on) Monday"

This is one of many errors that LanguageTool can detect.

Description: in (on) Monday
Message: The correct preposition in this context is "on".
Category: Grammar (ID: GRAMMAR)
Link: https://dictionary.cambridge.org/grammar/british-grammar/at-on-and-in-time
Incorrect sentences
that this rule can detect:
  • I work in Monday morning.
    Correction suggestion: on Monday morning
  • I will be back in next Friday night for sure.
    Correction suggestion: on next Friday night
Correct sentences
for comparison:
  • George was very impressive in Monday night's big win over St. Louis.
  • Well, we slept in Tuesday morning.
  • My guess is I'm probably going to want to take a quick nap when I get in Saturday morning before starting the weekend's activities.
ID: IN_WEEKDAY [2]
Version: 6.6-SNAPSHOT (2024-11-21 22:33:10 +0100)