Demonstrative adjectives are not gender specific in English. You need to pay attention to the characteristics of the noun and select the appropriate form of the demonstrative adjective. Here's a breakdown of the agreement rules: Singular Nouns: When the noun is singular, use the singular form of the demonstrative adjective. For example, "This car is mine" (singular noun) would use the singular form of the demonstrative adjective "This." Plural Nouns: When the noun is plural, use the plural form of the demonstrative adjective. For example, "Those flowers are beautiful" (plural noun) would use the plural form of the demonstrative adjective "Those."