Verbs are divided into three conjugations, which can be identified by looking at the infinitive ending, one of "-ar", "-er", "-ir" (and "-or", irregular verbs). Most verbs ends with "-ar", such as cantar (to sing). All verbs with the same ending follow the same patern.
In Portuguese, verbs are divided into moods:
Imperative. Used to express a wish, command or advice
Indicative. Used to express a fact
Subjective. Used to express a wish or a possibility
所有葡萄牙语都有性别词：masculine or inclusive and feminine or exclusive. Most adjectives and pronouns, and all articles indicate the gender of the noun they reference. The feminine gender in adjectives is formed in a different way to that in nouns. Most adjectives ending in a consonant remain unchanged: homem superior (superior man), mulher superior (superior woman). This is also true for adjectives ending in "e": homem forte(strong man), mulher forte(strong woman). Except for this, the noun and the adjective must always be in agreement.
From:https://www.dbfei.com/Article/putaoyayu/201311/8147.html