Muito, Muita, Muitos, or Muitas? Portuguese Agreement Made Clear
Use the noun to decide whether muito means “a lot of” and agrees in gender and number, or means “very” and stays unchanged.
Real Life Portuguese · 7 min read · Updated October 14, 2026
The short answer
When muito means “a lot of” or “many,” it agrees with the noun. Use muito with a masculine singular noun, muita with a feminine singular noun, muitos with a masculine plural noun, and muitas with a feminine plural noun.
Use muito before a masculine singular noun
Identify the noun and its article: o trabalho, a comida, os livros, as perguntas. Then choose the matching form of muito. The adjective ending is about Portuguese grammar; English does not make this distinction in “a lot of.”
Tenho muito trabalho hoje.
I have a lot of work today.
Bebi muita água.
I drank a lot of water.
Eles têm muitos amigos aqui.
They have many friends here.
Use muitas with feminine plural nouns
Use muitas before a feminine plural noun: muitas ideias, muitas pessoas, muitas cidades. Check the noun's gender and number rather than the English translation. Keep the article with each new noun so the agreement is easier to see.
Muito can also appear after a verb as an adverb meaning “a lot.” In that use it does not change to match a noun: trabalho muito (I work a lot), elas estudam muito (they study a lot). Ask whether muito describes a noun or the action.
Muitas pessoas estudam português.
Many people study Portuguese.
A gente viaja muito.
We travel a lot.
Eles falam muito durante o almoço.
They talk a lot during lunch.
Keep muito unchanged when it means “very”
Before an adjective or adverb, muito usually means “very” and stays unchanged: muito bom, muito bonita, muito rápido. The adjective still agrees with the noun, but muito does not. Compare muitos livros (many books) with livros muito interessantes (very interesting books).
The position helps you decide the meaning. If muito describes how strong an adjective is, leave it as muito. If it describes the quantity of a noun, make it agree with that noun.
O café está muito quente.
The coffee is very hot.
A viagem foi muito longa.
The trip was very long.
Essas perguntas são muito importantes.
These questions are very important.
Use a quick noun test to choose the right form
When you hesitate, remove the adjective or adverb and look for a noun. If you are describing many books, say muitos livros. If you are describing how good the books are, say livros muito bons. The noun phrase and the adjective phrase ask for different forms.
A similar distinction appears with pouco/pouca and tanto/tanta, which also change with nouns in quantity expressions. Master muito with a few phrases first, then notice the same agreement pattern elsewhere. Practice examples with Real Life Portuguese audio and bring your own sentences to I Speak Portuguese for feedback.
Tenho muitos livros, mas leio muito devagar.
I have many books, but I read very slowly.
Ela tem muita energia e trabalha muito.
She has a lot of energy and works a lot.
Os exercícios são muito fáceis.
The exercises are very easy.
Put it into practice
Write one phrase with muito, muita, muitos, and muitas before nouns. Then write one sentence where muito means “very” and stays unchanged.
Quick practice
Which Portuguese example matches “I have many books, but I read very slowly”?
Choose an answer to check yourself.
Keep practicing with the Real Life Portuguese app
Build on this guide with everyday expressions and native Brazilian audio. Choose iPhone, Android, or the web app.