Italian Prepositions: Di, A, Da, In, Con, Su, Per, Tra — Why They're Tricky and How to Master Them

Prepositions are the glue of Italian sentences — and they are notoriously tricky because they do not always translate directly from English. The eight core Italian prepositions are di, a, da, in, con, su, per, and tra/fra. Mastering their main uses — and how they form contractions with the definite article — will transform your fluency. Preposition errors are the most common markers of intermediate-level Italian; getting them right is the mark of advanced comprehension.

Note: con, per, and tra/fra do NOT contract with the definite article in modern Italian (though 'col' and 'coi' from con+il/i are still used informally). Use them as separate words: 'con il', 'per la', 'tra i'.

The preposition 'da' before a person's name or profession means 'at someone's place' — a contraction of 'a casa di'. So 'vado da Marco' means 'I'm going to Marco's place', 'sono dal dentista' means 'I'm at the dentist's', 'mangiamo dalla nonna' means 'we're eating at Grandma's'. This is one of the most useful and distinctly Italian uses of da — and one that often surprises learners when they first encounter it.