1. Essentials at a Glance

First-and-second-declension adjectives (1st and 2nd Declension Adjectives in Latin grammar) typically have three gender forms (masculine, feminine, neuter) patterned after -us/-a/-um (e.g. bonus, bona, bonum). They agree with nouns in gender, number, and case. Mastering these declensions is essential for reading and composing accurate Latin sentences. They appear in both classical prose and poetry, forming the foundation for most comparative and superlative adjective forms.