Understanding the Italian Preposition "Di"

The preposition di is one of the most versatile and essential words in the Italian language. It is primarily used to connect words and express relationships between them. Below are its most common functions.

1. Possession and Association

In English, we often use "'s" or "of" to show possession. In Italian, you use di to indicate who something belongs to or who it is associated with.

• Il libro di Marco (Marco's book)
• La macchina del professore (The professor's car)

2. Specification and Composition

Di is used to describe what something is made of, its content, or its specific type.

• Una giacca di pelle (A leather jacket)
• Un bicchiere d'acqua (A glass of water)
• Una lezione di storia (A history lesson)

3. Time and Habit

When referring to general times of the day or habitual periods, di is often used.

• Di sera non esco mai (In the evening, I never go out)
• Lavoro di lunedì (I work on Mondays)

4. Partitive Construction (Indefinite Quantities)

When you want to say "some" or "any," di combines with the definite article (il, lo, la, etc.) to form a partitive. This indicates an unspecified quantity.

• Devo comprare del pane (I need to buy some bread)
• Ci sono delle case sulla collina (There are some houses on the hill)
• Prendo della pasta (I'll have some pasta)

5. Verbal Complementation

Many Italian verbs require the preposition di before an infinitive verb. This is common with verbs of thinking, saying, finishing, or hoping.

• Penso di essere in ritardo (I think I am late)
• Ho finito di leggere (I finished reading)
• Smetti di gridare! (Stop shouting!)

Summary of Articulated Forms

When di is followed by a definite article, they merge:

• di + il = del
• di + lo = dello
• di + la = della
• di + i = dei
• di + gli = degli
• di + le = delle