Its auxiliary verbs, its pronouns, its articles, its deficiency of Declinable participles, and, lastly, its uniformity of position, preclude the exhibition of much enthusiasm in poetry; it possesses fewer capabilities of this nature than the Italian and the English; but this constraint and slavery render it more proper for tragedy and comedy than any language in Europe.
"A Philosophical Dictionary, Volume 5 (of 10) From "The Works of Voltaire - A Contemporary Version""
François-Marie Arouet (AKA Voltaire) Commentator: John Morley Tobias Smollett H.G. Leigh
This has been written to show that verbs of languages in general are as naturally Declinable as nouns.
"The English Language"
Robert Gordon Latham
But the definite article of that language, which is exactly equivalent to our the, is a Declinable word, making no small figure in grammar.
"The Grammar of English Grammars"
Goold Brown