In English, we typically use either an article or a possessive, but not both: “I love the cat.” “I love my cat.” In Italian, however, we do use both: “I love the my cat.” The article and the possessive agree in gender and number with the noun to which they refer, whatever is being possessed.
In English, the consonant “g” may be pronounced in any number of ways. In Italian, consonants such as “c” and “g” are pronounced differently depending on which vowels they precede.
In German, all nouns have gender (masculine, feminine, or neuter) and number (singular or plural). Both the definite article “the” and the indefinite article “a” agree with the gender and number of the noun they modify.