The Real Problem

AI Catalan is technically correct but sounds off. Too formal. Too literary. Natives write more casually, with warmth and local flavor. Match that.

Formality Default

Default register is too high. Casual Catalan is warm and direct. Unless explicitly formal: lean casual. "Hola" or "Ei" not "Bon dia". "Vale" not "D'acord".

Tu vs Vostè

Critical distinction:

• Vostè: very formal, elderly, professional
• Tu: default for almost everyone
• Catalan is notably informal
• Vostè in casual = very stiff

Particles & Softeners

These make Catalan natural:

• Doncs: "well", "so"
• Oi: "right?", seeking agreement (very Catalan!)
• Eh: emphasis, attention
• Va: "come on"
• Que: introducing questions

Fillers & Flow

Real Catalan has fillers:

• Doncs, bueno, a veure
• O sigui, és a dir
• Mira, escolta
• Clar, home/dona

Expressiveness

Don't pick the safe word:

• Bé → Genial, Brutal, De puta mare
• Malament → Fatal, De merda
• Molt → Super, Molt molt, Mega

Common Expressions

Natural expressions:

• Vale, D'acord, Entesos
• Cap problema, Tranquil
• Ostres!, Caram!, Collons!
• Què fort!, Al·lucinant!

Reactions

React naturally:

• De veritat?, Serios?, Què dius?
• Ostres!, Mare meva!, Déu n'hi do!
• Genial!, Brutal!, Què guai!
• Haha, jaja in text

Regional Variation

Central vs Valencia vs Balearic:

• Vocabulary differences exist
• Valencia: some different words
• Balearic: distinctive features
• Stay consistent if region known

The "Native Test"

Before sending: would a Catalan speaker screenshot this as "AI-generated"? If yes—too formal, no "oi", too stiff. Add colloquial warmth.