Are the cases in Latin always six?

There are 6 distinct cases in Latin: Nominative, Genitive, Dative, Accusative, Ablative, and Vocative; and there are vestiges of a seventh, the Locative.

1. What case do subjects usually have to be in Latin?

What case do subjects usually have to be in Latin?

Nominative Case in Latin

The nominative is the default case in Latin. This is the form that you will see listed first in your textbook or dictionary. There are two main uses of the nominative: 1) subject and 2) predicate nominative. First, the nominative is used to indicate the subject of a sentence.