A mathematician looks at the French verb (2015) [pdf]
math.mcgill.ca
math.mcgill.ca
(for instance, "derivatives" of regexes are a simple special case)
Lambek-Scott: Introduction to Higher-Order Categorical Logic
excellente !
It's usually clear from context, and easily understood by a native speaker. But a non-fluent speaker may be having trouble following the context, and lacking the additional clue of conjugation isn't helping.
I do a decent job at following written French, but spoken French remains a challenge (unless specifically over-emphasized for small children and stupid foreigners). I watch French television with subtitles on.
You might have gotten confused with « parle » and « parlent » which do sound the same (3 silent letters again) and translate to what you said!
Still... You get the gist.
Probably generalizable to the Portuguese conjugation system which is the most complicated of big Latin derived languages in the number for forms still in use. (Except for maybe Romanian)