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Browse Rules: 6,145 matches

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

Description Example Category
That cool (That is cool) That great. Grammar
must vs most I most do it tomorrow. Commonly Confused Words
That sound (sounds) cool That sound great. Grammar
Possible agreement error: plural noun + singular verb Grammatical errors always makes your text look bad. Grammar
Possible agreement error: plural noun + singular verb Grammatical errors is bad. Grammar
Possible agreement error: plural noun + singular verb Does dogs sleep more than 15 hours per day? Grammar
Agreement: 'have' + past/present tense What have you did? Grammar
Agreement: 'have' + past/present tense Where have you went? Grammar
Agreement error: Third-person verb with a non-third-person pronoun What has you done? Grammar
Agreement error: Non-third person/past tense verb with 'he/she/it' or a pronoun When have Mary bought a ticket? Grammar
LanguageTool 6.7-SNAPSHOT (2025-04-18 22:33:10 +0200)