Le Robert Correcteur and Le Robert & Collins Dictionary

[rlnv]

Where does spelling end and grammar begin? I ran the following sentence through BonPatron, LibreOffice Writer and Word yesterday":
"une paralysie des jambes le clouaient à son fauteuil," and all three let it stand as correct. The spelling "clouaient" is correct, but grammatically it is incorrect, being third person plural instead of third person singular, "clouait." I am puzzled by this.

Correcteur found two issues. Une was not capitalized, and the verb tense.

[MorkTheFiddle]

Correcteur found two issues. Une was not capitalized, and the verb tense.

Interesting. By the way, the quote comes from the preface of Maupassant's Contes de la bécasse. I should have mentioned that yesterday. And the quote is only part of a sentence, which is why "une" was not capitalized. But I'm glad that's how I quoted it, because we see that a good grammar checker can detect that kind of error. Thanks.
I've just done some tinkering with my settings for Word. Now it detects the errors with "une" and "clouaient." What I did was have it check grammar as I typed. I changed my preference only after I typed the sentence, but it detected the errors anyway.
When I type the sentence in Writer, Writer automatically changes "une" to "Une." It still lets "clouaient" slide. The reason for that is that (now I remember) I never downloaded a French grammar checker for Libre Office.

[ilmari]

And this is Antidote:

[rlnv]

Antidote looks great. It looks like both Antidote and Correcteur do better than BonPatron for that particular sentence.

I updated my screenshot, as I chopped off part of the window the first go around.

[MorkTheFiddle]

Grammalecte serves as one of the spelling and grammar checkers for LibreOffice Writer. It worked rather well in my limited testing, catching both misspelled words and incorrect number in verbs. I posted some screen shots in my blog: http://tinyurl.com/h2tzspg

You can download the extension here: https://extensions.libreoffice.org/extensions/grammalecte

Steps on installing LibreOffice extensions are here: https://wiki.documentfoundation.org/Documentation/HowTo/install_extension.

That site warns that you install extensions at your own risk, so if you install an extension and as a consequence the moon falls out of its orbit onto your pub, it's not my fault!