_For the present conjunctive _Ba_ or _Domo_ is added to the imperative; e.g., _Narayeba, narayedomo_; _Vomoyeba, vomoyedomo_; _Furuyeba, furuyedomo_. For the preterit _Reba_ or _Redamo_[38] is added to the indicative preterit; e.g., _Narǒtareba, narǒtaredomo_; _Vomôtareba, vomôtaredomo_; _Furûtareba, furûtaredomo_._ _The present conditional is formed by changing _ǒ_ of the future to _Aba_; e.g., _Narauaba_, _Vomouaba_, _Furuuaba_. The preterit is formed by adding _Raba_ to the indicative preterit; e.g., _Narǒtaraba_, _Vomôtaraba_, _Furûtaraba_._ {26} _The negative present is formed by changing the _I_ of the root to _Vanu_ or _vazu_; e.g., _Narai, narauanu, narauazu_; _Vomoi, vomouanu_, etc.; _Furui, Furuuana_, etc. This form can also be formed from the future by changing the _ǒ_ to _Anu_ or _azu_; e.g., _Narauǒ, narananu_, etc. For the preterit the _Nu_ is changed to _Nanda_; e.g., _Narauananda_. For the preterit participle the _Da_ is changed to _De_; e.g., _Narauanande_. For the second form the _Nu_ of the present is changed to _Ide_; e.g., _Narauaide_, _Vomouaide_, _Furuuaide_. For the future the particle _Majii_,[39] _maji_, or _mai_ is added to the affirmative present indicative; _e.g._, _Narǒmajii, narǒmaji, narǒmai_; _Vomômajii, ji_, or _mai_; _Furûmajii, ji_, or _mai_._ _The verb _Yy_ 'to speak' becomes _Yû, yûta, yuǒ, yye, yuanu_. _Yei_ or _yoi_ 'to become sick' becomes _Yô, yôta, youǒ, yoye, yonanu_. The substantive verb _Saburai_, which also belongs to this conjugation, becomes _Saburǒ, saburauanu_; and _Sǒrai_ becomes _Sǒrǒ, soro, sǒraite, sǒraye, sorouanu_._ Rodriguez follows these formational rules with a full display of all the forms of the three conjugations. In his display he, like Alvarez before him, recapitulates the appropriate rules for each form. Collado nowhere presents his conjugational system as a paradigm but does, as we shall see, include a full complement of example sentences in his description, something which Rodriguez does not do in the _Arte Breve_. _Bibliography_ In the examination of any portion of the Christian materials certain works are indispensable. Father Johannes Laures, S.J., _Kirishitan Bunko_ (Tokyo, 1957) remains the basic bibliographic source for the study of all sources of the Christian Century, while Hashimoto Shinkichi, _Kirishitan kyōgi no kenkyū_ (Tokyo, 1929) and Doi Tadao, _Kirishitan gogaku no kenkyū_ (Tokyo, 1942) serve as indespensible guides to our understanding of the linguistic aspects of the field. A later contribution to the general bibliography has been made by Fukushima Kunimichi, _Kirishitan shiryō to kokugo kenkyū_ (Tokyo, 1973).