Yes, "Native American" is a proper adjective for indigenous peoples of America.
The proper adjective is "American," derived from the proper noun "America."
The proper adjective for Portuguese is "Portuguese."
Mayan is itself a proper adjective.
Russian IS an adjective.
The proper adjective for Mexican is "Mexican."
No, "animal" is not a proper adjective; it is a common noun. Proper adjectives are derived from proper nouns and are capitalized, such as "American" from "America" or "French" from "France." In contrast, "animal" can be used as a common adjective when describing something related to animals, but it does not meet the criteria of a proper adjective.
The proper adjective for Inca is Incan. An example sentence: They traveled to South America to tour the Incan ruins. In Spanish, the proper adjective is Incaico, as in Imperio Incaico (Inca Empire)
The proper adjective is American, describing the noun 'literature' as 'of America'.
The proper adjective is "American," derived from the proper noun "America."
South America is a proper noun due to it being the name of a place.
The adjective form of America is American. The word American can also be a noun (demonym).
The proper adjective for southwest is "southwestern."
The proper adjective is Haitian.
The proper adjective for Portuguese is "Portuguese."
The proper adjective for Inca is Incan. An example sentence: They traveled to South America to tour the Incan ruins. In Spanish, the proper adjective is Incaico, as in Imperio Incaico (Inca Empire)
The proper adjective form for Navajo is Navajo, as in Navajo Nation, Navajo people, Navajo history, Navajo art, etc. An example sentence: We visited the Navajo display at the museum to see the Navajo jewelry.
Vietnamese is the proper adjective for Vietnam.