_Cah_ is consequently a true auxiliary verb; _ten_, when it appears in conjunction with _en_ must have the notion of Being understood: _ah_ appears to be of similar nature, but as it appears only in the conjugation of transitive verbs, it is a verbal sign, and thus receives its verbal power. That _cah_ and _ah_ do really possess this powever[TN-8] is evident from the fact that they are never used whenever either of the pronouns which are always associated with the notion of Being is present. Except in the future of transitive verbs, there is no instance in the conjugation where the stem of the verb is not accompanied by one of these four syllables, all of which indicate Being, and all of which have the force of auxiliary verbs. The future of transitive verbs not only does not take any of these syllables, but even rejects _ah_ when it is the terminal syllable of the stem. In this case no other termination replaces it. On the contrary, all other verbs receive a new suffix in their future, varying as they are of one or many syllables. The nature of these suffixes has not been explained. The definite results of this analysis are as follows: 1. The Maya language possesses in its conjugation, besides the inflection syllables of the persons and tenses, another element, which, except in the simple future of transitive verbs, distinctly carries with it the notion of Being; in the future of most verbs there is such an element, but of unknown origin, and it only fails in the future of one class of verbs. 2. This language displays an effort to express, besides the other purposes of the verb, particularly its synthetic power, which is all the more apparent as it uses different means in different cases, but all designed to accomplish the same purpose. The Yaruri language constructs the whole of its conjugation in a yet simpler manner by means of an auxiliary verb. The union of the pronoun and the tense sign which, as we have already seen, forms the substantive verb, affixed to the stem, completes the inflections of the one and only conjugation of attributive verbs, except that the independent pronouns are prefixed. Neither the stem nor the auxiliary words suffer any changes, except the insertion of an _n_ in one person. The union remains, however, a loose one, and when person and tense are manifest by the connection, the auxiliary verb is omitted. This happens in certain verbs ending in _pa_. These, contrary to the usual rule, change in the perfect this termination to _pea_, by which the tense is made apparent, and as the person is evident from the prefixed personal pronoun, the auxiliary can be dropped without danger of obscurity. The formation of certain tenses by means of auxiliaries is also frequent in American languages. An optative of this nature in the Lule language has already been mentioned.