Intensive Outpatient Treatment (also known as IOP for Intensive Outpatient Program) is a primary treatment program recommended in some circumstances by a clinical and medical assessment. IOP may be recommended for those who do not need medically-supervised detox.
The genitive is the case (or function) of an inflected form of a noun or pronoun showing ownership, measurement, association, or source. Adjective: genitival. The suffix -'s on nouns is a marker of genitive case in English. Genitive case can also be indicated by an of phrase after a noun.
A verb expresses an action or indicates a state or condition. An infinitive is the form of a verb that shows no subject or number, such as comprar/ to buy, vender/ to sell, recibir/ to receive. Verbs consist of a stem, such as compr in comprar, vend in vender, recib in recibir, and an ending, such as-ar, -er, -ir.