Grammar Duolingo Latino: 3.1 Adjectives.

B. D. H.
Grammar: 3. Tips. 2.5 Vocabulary. ↔ 3.2 Locative.

Adjectives

Just like nouns, adjectives follow declensions. The adjective solus (masc.), sola (fem.), solum (neut.) follow the first and second declension, and get the same endings as nouns: discipulus - femina - Eboracum.
Have a look at how the ending of the adjective changes:

Latin	English	Gender
discipulus novus	a new student	masculine
familia nova	a new family	feminine
civitas nova	a new state	feminine
Novum Eboracum	New York	neuter
nomen novum	a new name	neuter

When using sum, you also need to make sure the adjective agrees with the noun.

Latin	English
Marcus est Romanus.	Marcus is Roman.
Livia Americana est.	Livia is American.
Nomen est novum.	The name is new.
Ego solus sum.	I am alone. (masculine)
Ego sola sum.	I am alone. (feminine)

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