H. P. Grice "Echoing Kantotle"

The root of the confusion lies in quoting sentences from common speech
as examples of the logical forms, forgetting that those forms are
purely artificial. "Omnis homo est mortalis," "All men are mortal," is
not an example formally of All S is P. P is a symbol for a substantive
word or combination of words, and mortal is an adjective. Strictly
speaking, there is no formal equivalent in common speech, that is,
in the forms of ordinary use--no strict grammatical formal
equivalent--for the syllogistic propositional symbols. We can make
an equivalent, but it is not a form that men would use in ordinary
intercourse. "All man is in mortal being" would be a strict
equivalent, but it is not English grammar.