Quantity & Selection Questions in Portuguese

Overview

Quantity & Selection Questions (Perguntas de Quantidade e Seleção) is a beginner (CEFR A1) topic in Portuguese grammar. Question words for quantity: quanto/a/os/as (how much/many), qual/quais (which/what). Quanto agrees in gender/number with the noun.

Understanding quantity & selection questions is essential for building correct Portuguese sentences and communicating effectively. This concept is introduced at the A1 level and forms part of the foundation for more advanced grammar structures.

Whether you are learning Brazilian or European Portuguese, mastering quantity & selection questions will significantly improve your ability to express yourself naturally and accurately in a variety of contexts.

How It Works

Quantity questions with quanto (agrees in gender/number):

Form	Use	Example
quanto (m. sg.)	how much	Quanto custa?
quanta (f. sg.)	how much	Quanta agua queres?
quantos (m. pl.)	how many	Quantos irmaos tens?
quantas (f. pl.)	how many	Quantas pessoas vieram?

Selection questions with qual/quais:

Form	Use	Example
qual (sg.)	which one	Qual preferes?
quais (pl.)	which ones	Quais sao os teus?

Qual does not change for gender. Used with ser: Qual e o teu nome? (What is your name?)

Examples in Context

Portuguese	English	Note
Quanto custa?	How much does it cost?
Quantos irmãos tens?	How many siblings do you have?
Qual preferes?	Which one do you prefer?
Quais são os teus?	Which ones are yours?
Quanta agua?	How much water?	f. sg.
Quantas pessoas?	How many people?	f. pl.
Qual e o teu nome?	What is your name?	qual+ser
Quanto tempo?	How long?	m. sg.
Quantos filhos tens?	How many children?	m. pl.

Common Mistakes

Incorrect form usage

• Wrong: Applying rules from English or other languages directly
• Right: Follow Portuguese-specific patterns for quantity & selection questions
• Why: Portuguese has its own rules that do not always align with English or other Romance languages.

Forgetting agreement rules

• Wrong: Not matching gender, number, or person correctly
• Right: Ensure all elements in the sentence agree with each other
• Why: Portuguese requires strict agreement between subjects, verbs, articles, adjectives, and pronouns.

Mixing formal and informal registers

• Wrong: Using tu forms with voce verb conjugations, or vice versa
• Right: Be consistent with your chosen register throughout a conversation
• Why: Register consistency is important for natural-sounding Portuguese.

Usage Notes

This concept appears across both Brazilian and European Portuguese, though specific usage patterns may differ between the two variants. At the A1 level, focus on understanding the core patterns before worrying about regional differences.

In everyday conversation, quantity & selection questions is used frequently in both formal and informal contexts. Pay attention to how native speakers use it in the media you consume, and note any differences between Brazilian and Portuguese sources.

Practice Tips

1. Practice quantity & selection questions with authentic Portuguese texts, listening for how native speakers use these forms in context.
2. Create flashcards with complete example sentences rather than isolated words to reinforce natural patterns.
3. Write short paragraphs using quantity & selection questions and compare them with native-written texts to identify areas for improvement.

Related Concepts

• Prerequisite: Basic Questions -- provides the foundational knowledge needed for quantity & selection questions