(Gram.) A word which affirms or predicates something of some person or thing; a part of speech expressing being, action, or the suffering of action. Note: A verb is a word whereby the chief action of the mind (the assertion or the denial of a proposition) finds expression.
... are formed by means of the auxiliary verb *esti*, to be. Thus, by the combination of the participles with the six tenses and moods, we obtain thirty-six compound tenses, enabling us to express with the utmost precision any time-relation ... — Esperanto Self-Taught with Phonetic Pronunciation • William W. Mann
...
