The Partitive Quantity Pattern: Quantity + di + Noun

When Italian wants to say "a kilo of apples," "a glass of wine," "many of us," or "most of the students," it reaches for a single, productive pattern: quantity expression + di + noun (or pronoun). Un chilo di mele, un bicchiere di vino, molti di noi, la maggior parte degli studenti. The preposition is always di, the noun usually drops its article (because the partitive di already does the work), and after di + pronoun you must use the tonic (stressed) pronoun forms — di me, di te, di noi, di voi, di loro — never the unstressed clitic forms.

This pattern is one of the most reusable building blocks in spoken and written Italian. Once you internalize the structure, you can express any quantity-of-something construction without thinking. This page lays out the full pattern, separates the four main subcases, drills the tonic-pronoun rule that English speakers consistently get wrong, and contrasts Italian with French and Spanish.

The pattern in one line

[QUANTITY EXPRESSION] + di + [NOUN or TONIC PRONOUN]

That's the whole thing. Everything that follows is just enumerating which expressions slot into the left-hand side, and what happens with articles, pronouns, and agreement.

The English equivalent uses "of" — but English "of" can hide elisions. Italian di is always there, no elision possible.

The four subcases

The pattern splits into four cases, depending on what kind of quantity expression sits on the left and what kind of element sits on the right.

Case 1: Container or measure + di + noun (no article)

The most common everyday case: a unit of measurement or a container expresses an amount of an uncountable noun. The noun after di is bare — no article, no determiner.

The bare noun after di is the default. Adding an article (un chilo della mela) would be wrong in this generic case — it would imply "a kilo of the [specific] apple," which only makes sense in very particular contexts.

Case 2: Quantifier + di + pronoun or specific group

When the right-hand side is a pronoun or a specific group (with article), the pattern is quantifier + di + tonic pronoun / article + noun.

The quantifier itself agrees with the implied noun. Molti di noi (masculine plural — implied "us boys/people"), molte di noi (feminine plural — implied "us women"). The di + pronoun stays the same; the quantifier carries the agreement.

Case 3: "La maggior parte di," "la metà di," "un terzo di" — fractions and majorities

Quantity expressions involving fractions, percentages, or "the majority/minority" all use di. These take an article on the left (because parte, metà, terzo are nouns) and combine with di (or di + article) on the right.

A subtle agreement note: with la maggior parte di and la metà di, the verb usually agrees with the head (la parte, la metà — singular feminine) in formal writing, but with the tail (the noun after di) in everyday speech. Both are accepted.

The same flexibility holds for percentages: Il 30% degli italiani vota / votano.... Both are heard and tolerated.

Case 4: Approximate numbers — circa, un centinaio di, una decina di

Italian forms approximate numbers with collective nouns ending in -ina or -aio: una decina (about ten), un centinaio (about a hundred), un migliaio (about a thousand). These all combine with di.

These collective approximators are some of the most natural and idiomatic features of spoken Italian. Una ventina di feels far more conversational than the bare circa venti — the -ina form is what natives reach for.

The tonic pronoun rule (the rule English speakers miss)

After di + pronoun, you must use the tonic (stressed) pronoun forms — me, te, lui, lei, noi, voi, loro — and never the unstressed clitic forms (mi, ti, gli, le, ci, vi).

The reason: clitic pronouns can only attach to verbs (or imperatives, infinitives, and gerunds in specific positions). They cannot follow a preposition. After every Italian preposition — di, a, da, in, con, su, per, tra, fra — you must use the tonic pronoun.

This rule is mechanical and exceptionless: prepositions always take tonic pronouns.

When di contracts with a definite article

If di is followed by a noun with a definite article, the two contract into a single word:

These contractions are mandatory — you cannot leave di il uncontracted. For the full table of preposition + article contractions, see Articulated Prepositions.

Quantifier directly + noun (no di) vs. quantifier + di + noun

A subtle distinction that matters: when a quantifier appears directly with a noun (no article, no di), it functions as a determiner. When the quantifier is followed by di, it functions as a quantifying pronoun referring to a specific group.

The first form (no di) means "many in general"; the second and third (with di) mean "many of [this defined group]." The distinction matters more in writing, where precision counts; in conversation, both forms slide past unchallenged.

Comparing French, Spanish, English

The quantity + of + noun pattern is shared across European languages, but the details differ in revealing ways.

The closest neighbor here is Spanish, which uses de exactly like Italian uses di: muchos de nosotros parallels molti di noi almost word for word. The pronoun forms are also parallel: Spanish uses tonic nosotros / ustedes, Italian uses tonic noi / voi.

French does something distinct: instead of plain de + nous, French uses d'entre nous (literally "of among us") — beaucoup d'entre nous, peu d'entre vous. The d'entre construction is mandatory in French in this context. Italian doesn't have an equivalent: never molti d'infra noi, just molti di noi.

English uses "of" identically to Italian di in most cases. The big trap is that English allows the bare quantifier without "of" in some contexts ("many people," "many of us") — and English speakers sometimes drop di in Italian on the same logic. Molti noi is wrong; it must be molti di noi.

"Niente di," "qualcosa di," "qualcuno di" — the indefinite + di + adjective pattern

A closely related pattern appears with indefinites and an adjective: niente di + adjective, qualcosa di + adjective, qualcuno di + adjective. Here, di connects the indefinite to a descriptive adjective rather than to a noun.

The adjective after di is always masculine singular (the default form), regardless of the gender or number of the implied referent. Niente di nuovo — even if "nothing" is a vague feminine concept; qualcosa di bello — even if you're talking about feminine things. The construction is fossilized in this masculine-singular form.

For details, see Niente di, Qualcosa di.

A note on the partitive article (del, della, dei, delle)

The partitive article (del pane, della pasta, dei libri, delle case) is built from the same di + article contractions as the quantity-of pattern. Conceptually, the partitive article expresses "some, an unspecified amount" — and structurally, it is di + the definite article fused into one word.

This is not the partitive-quantity pattern of this page — those are partitive articles with a different (though related) function. For the partitive article in detail, see Partitive Articles.

The connection: both constructions use di (often contracted with an article) to convey an indefinite, partial quantity. The difference: the partitive article replaces an indefinite article (ho dei libri = "I have some books"); the partitive-quantity pattern adds an explicit quantity word (ho un chilo di mele = "I have a kilo of apples").

Common Mistakes

Key takeaways

• The pattern [QUANTITY] + di
  • [NOUN/PRONOUN]
  is one of the most productive in Italian. Use it for measures, containers, fractions, percentages, majorities, approximate numbers, and any quantifier-of-group expression.
• Bare nouns after di are normal for generic quantities (un chilo di mele). Use di
  • definite-article contraction (degli, della, etc.) for specific groups.
• After di (and any preposition), you must use the tonic pronouns me, te, lui, lei, noi, voi, loro — never the clitic forms mi, ti, gli, le, ci, vi. Molti di noi, never molti di ci.
• Italian and Spanish are nearly identical in this construction. French uses d'entre nous where Italian uses di noi. English uses "of" the same way.
• Approximate numbers in -ina / -aio (una decina di, un centinaio di, un migliaio di) all use di and are essential idiomatic patterns.
• The closely related partitive article (del, della, dei, delle) is built from the same di + article contraction, with a different but related function: expressing an unspecified amount without an explicit quantity word.

For wider context, see Determiners: Overview and Determiners: Complete Reference. For the quantifier inflections (molto, poco, tanto, troppo), see Molto, Poco, Tanto, Troppo. For the partitive article specifically, see Partitive Articles. For the di + article contractions in their own right, see Articulated Prepositions.