2. Adjectives ending in o change the feminine into a, as:

o bonito, the pretty, a bonita.

3. Those ending in ú, m and r, add an a in the feminine, as:

4. Adjectives ending in ão change to ãa in the feminine, as:

27.
The Plurals of Adjectives

are formed in the same manner as the plural of Nouns, as:

Singular.Plural.
Masc. Fem.Masc.Fem.
forte,strong,fortefortes,fortes
gordo,fat,gordagordos,gordas
crú,raw,cruacrús,cruas
são, healthy,sãasãos,sãas
igual,equal, igualiguaes,iguaes
amavel,amiable,amavelamaveis,amaveis
civil,civil,civilcivis,civis
algum,any one,algumaalguns,algumas
protector,protected,protectora protectores,protectoras
capaz,capable,capazcapazes,capazes.