Questions & Answers about Il mio amico è giù in cucina.
In standard Italian, possessives like mio, tuo, suo, etc. usually take a definite article:
- il mio amico = my friend
- la mia casa = my house
- i miei libri = my books
So il mio amico is the normal pattern.
One important exception: with many singular family members, Italian often drops the article:
- mia madre
- mio fratello
- mio zio
But amico is not a family term, so il mio amico is the expected form.
In Italian, possessive adjectives normally come before the noun:
- il mio amico
- la tua macchina
- i nostri vicini
That is just the standard word order.
Putting the possessive after the noun is possible in some special or literary cases, but it is not the normal everyday pattern here.