In English there are no masculine or feminine forms. English uses gender specific nouns for male or female.
The noun 'fish' is a common gender noun, a word for a male of a female. There are no gender nouns specifically for a male fish or a female fish.
Masculine
fishes
"Actriz" is a feminine noun. "Actor" is the masculine.
The French have feminine and masculine words for African: africain (noun or adjective, masculine) and africaine (noun or adjective, feminine).
Butter is "beurre" in French, a masculine noun.
Masculine.
C'est le poisson, donc masculin.
It is a masculine noun
Une personne (feminine noun)
masculine
un marqueur is a masculine noun as indicated by the masculine article 'un'. The feminine article 'une' will introduce a feminine noun, as 'une voiture'.
masculine
It depends on the noun that follows 'its': -son (if the noun is masculine, singular) -sa (if the noun is feminine, singular) -ses (if the noun is either masculine or feminine, plural)
Le poivre is a masculine noun.