The indirect passive is where the subject is an indirect object of the verb in its active voice, as:
suratí an imo amáy (write to your father; literally: let a letter be written by you to your father),
The instrumental passive is where the subject is the instrument or real object of the action, as:
igsurát iní ng̃a pluma (write with this pen; literally: let this pen be used by you in writing.)
MOODS AND TENSES
There are four moods: infinitive, indicative, imperative, and subjunctive,
The infinitive has two tenses: present, and gerund; three in passive voice: present, gerund, and past participle.
The indicative has three. The ordinary forms have present, past and future. The irregular forms have present, imperfect past, and past.
The imperative and subjunctive, have each one tense: present.
Infinitive: The present is frequently used as a noun, as: