You must mean the word mater (there is no matr). The accusative singular of this is matrem; the accusative plural matres.
In Latin, the nominative case is used for the subject of a sentence, while the accusative case is used for the direct object. The nominative form typically identifies the doer of the action, while the accusative form receives the action of the verb.
The accusative case is the direct object of an action; it receives the direct affect of the verb. E.g. THE CAT SEES THE CAR (the car is in the accusative case because it's being seen by the cat) In English we mark personal pronouns in the accusative case: HE LOVES HIM (HIM being the direct object).
Magistram is the accusative singular form of the word magistra, which means "mistress." The accusative case is used for direct objects and for the objects of certain prepositions such as ad ("to") and apud ("near; at the home of").
Accusative.
The pronoun "it" changes its form least as its case changes. It remains the same in the nominative, accusative, and genitive cases.
To change "puer" (nominative singular) to accusative plural, you need to first change it to the nominative plural form which is "pueri." Then, to get the accusative plural form, change "pueri" to "pueros."
When pronouns receive the action of the verb, they are in the accusative case. This form is used to indicate the direct object of the verb in a sentence. Examples of accusative pronouns include me, you, him, her, it, us, and them.
The accusative of the word "cubiculum" in Latin is "cubiculum." This is because "cubiculum" is a neuter noun in the second declension, which means that the accusative form is the same as the nominative form.
accusative of time.
Boys (accusative case).
Who is nominative. Whom is accusative.