[12.] Numerical descriptions of measure are expressed by the genitive with a modifying adjective. [§ 443].
[13.] The indirect object of a verb is in the dative. [§ 45].
[14.] The dative of the indirect object is used with the intransitive verbs crēdō, faveō, noceō, pāreō, persuādeō, resistō, studeō, and others of like meaning. [§ 154].
[15.] Some verbs compounded with ad, ante, con, dē, in, inter, ob, post, prae, prō, sub, super, admit the dative of the indirect object. Transitive compounds may take both an accusative and a dative. [§ 426].
[16.] The dative is used with adjectives to denote the object toward which the given quality is directed. Such are, especially, those meaning near, also fit, friendly, pleasing, like, and their opposites. [§ 143].
[17.] The dative is used to denote the purpose or end for which; often with another dative denoting the person or thing affected. [§ 437].
Accusative Case
[18.] The direct object of a transitive verb is in the accusative and answers the question Whom? or What? [§ 37].
[19.] The subject of the infinitive is in the accusative. [§ 214].