Things everyone will know by the time we leave Capitulum Quīntum

Rēs quae in Capitulō Quīnto omnibus discendae sunt

A. Plural forms of the Accusative Case – casus accūsātīvus: This is the category of endings that indicate the word is being used as the direct object, or as the object of some prepositions. The singular forms were introduced in Cap. III.

1. The forms for both singular and plural look like this:

Casus Accūsātīvus, Singulāris et Plūrālis
	Masculīnus	Fēminīnus	Neuter
Singulāris	-um	-am	-um
Plūrālis	-ōs	-ās	-a

2. Notice that the neuter nominative and the neuter accusative are exactly the same in the singular and in the plural, -um for the singular and –a for the plural.
3. For masculine and feminine nouns, the singular accusative always ends in –m and in -s in the plural.

B. The prepositions ab, cum, ex, in, sine “take” or “govern” the ablative case.

1. The ablative case endings, singular and plural, look like this:

Casus Ablātīvus, Singulāris et Plūrālis
	Masculīnus	Fēminīnus	Neuter
Singulāris	-ō	-ā	-ō
Plūrālis	-īs	-īs	-īs

2. The object of one of these prepositions has an ablative case ending.

C. The demonstrative or personal pronoun is, ea, id;

1. These mean “he, she, it, they” as a personal pronoun, “this, that” as a demonstrative pronoun or adjective. In the accusative and ablative case, they would correspond to “him, her, it, them,” in the genitive, to “his, her, its, their and theirs.”

2. Here are the forms for the nominative, accusative, genitive and ablative:

Singulāris
	Masculīnus	Fēminīnus	Neuter
Nominātīvus	is	ea	id
Accūsātīvus	eum	eam	id
Genetīvus	eius	eius	eius
Ablātivus	eō	eā	eō
Plūrālis
	Masculīnus	Fēminīnus	Neuter
Nominātīvus	iī (eī)	eae	ea
Accūsātīvus	eōs	eās	ea
Genetīvus	eōrum	eārum	eōrum
Ablātivus	iīs (eīs)	iīs (eīs)	iīs (eīs)

D. Singular and plural forms of the Imperative and Indicative moods of verbs in the four classes of verbs:

	Prīma	Secunda	Tertia	Quarta
Imp. Sg.	vocā	vidē	pōne	audī
Imp. Pl.	vocāte	vidēte	pōnite	audīte
Ind. Sg.	vocat	videt	pōnit	audit
Ind. Pl	vocant	vident	pōnunt	audiunt