The imperative, _avsa_; which in the first person is used to convey determination or resolve; _avsa_, spoken in a peremptory tone, meaning "I _will_ be," while _avso_, according to the intonation, means "be" or "thou shalt be;" i.e., shalt whether or no.

_R_ forms the conditional, _avra_, and _ren_ the conditional past, _avrena_, "I should have been." The need for a passive voice is avoided by the simple method of putting the pronoun in the accusative; thus, _daca_ signifies "I strike," _dacal_ (me strike) "I am struck." The infinitive is _avi; avyta_, "being;" _avnyta_, "having been;" _avmyta_, "about to be." These are declined like nouns, of which latter there are six forms, the masculine in _a, o, and y,_ the feminine in _a, oo, and e;_ the plurals being formed exactly as in the pronominal suffixes of the verb.

The root-word, without inflexion, alone is used where the name is employed in no connection with a verb, where in every terrestrial language the nominative would be employed.

Thus, my guide had named the squirrel-monkeys _ambau_ (sing.

_amba_); but the word is declined as follows:-- _Singular._ _Plural._ _Nominative_ ambas ambaus _Accusative_ ambal ambaul _Dative, to_ or _in_ amban ambaun _Ablative, by_ or _from_ ambam ambaum The five other forms are declined in the same manner, the vowel of the last syllable only differing.