quanto/quanta/quantos/quantas
Quanto Agreement
Quanto is the Portuguese word for 'how much' or 'how many'. Unlike English, it changes its ending to match the noun it refers to: quanto (masc. sing.), quanta (fem. sing.), quantos (masc. plur.), and quantas (fem. plur.).
How It Works
In Portuguese, quanto is a variable word, meaning it adapts to the noun it accompanies.
1. The Four Forms:
- Quanto: Masculine Singular (How much). Used with uncountable nouns like dinheiro (money) or tempo (time).
- Quanta: Feminine Singular (How much). Used with uncountable nouns like água (water) or paciência (patience).
- Quantos: Masculine Plural (How many). Used with countable nouns like anos (years) or livros (books).
- Quantas: Feminine Plural (How many). Used with countable nouns like vezes (times) or pessoas (people).
2. Usage Contexts:
- Interrogative: Direct or indirect questions about quantity. (e.g., Quantos anos você tem?)
- Exclamatory: To express surprise at a quantity. (e.g., Quanta gente! - So many people!)
- Relative: To link clauses, often meaning 'as much as' or 'all that'. (e.g., Fiz tudo quanto pude. - I did everything [that] I could.)
3. Adverbial Use:
When quanto modifies a verb rather than a noun, it remains invariable in the masculine singular form (e.g., Quanto custa? - How much does it cost?).
Examples (5)
- Quanto dinheiro você tem na carteira?
How much money do you have in your wallet?
Word by Word: How much money you have in the wallet?
'Quanto' is masculine singular to agree with 'dinheiro'.
- Quantas pessoas vêm para o jantar?
How many people are coming to dinner?
Word by Word: How many people come for the dinner?
'Quantas' is feminine plural to agree with 'pessoas'.
- Quantos livros você leu este ano?
How many books did you read this year?
Word by Word: How many books you read this year?
'Quantos' is masculine plural to agree with 'livros'.
- Quanta paciência é necessária para este trabalho!
How much patience is necessary for this job!
Word by Word: How much patience is necessary for this work!
Used here as an exclamation, 'quanta' agrees with the feminine noun 'paciência'.
- Eu não sei quanto custa a passagem.
I don't know how much the ticket costs.
Word by Word: I not know how much costs the ticket.
In this case, 'quanto' acts as an adverb modifying the verb 'custa', so it stays in the masculine singular form.
Common Mistakes
Using 'quanto' as an invariable word for all nouns.
Quanto pessoas estão na sala?Quantas pessoas estão na sala?Unlike 'quem' or 'onde', 'quanto' must change to match the gender and number of the noun (pessoas is feminine plural).
Confusing 'quanto' with 'como' for quantity.
Como açúcar você quer?Quanto açúcar você quer?'Como' means 'how' (manner), while 'quanto' means 'how much' (quantity).
Using 'quão' with nouns.
Quão livros você tem?Quantos livros você tem?'Quão' is an invariable adverb used only before adjectives or adverbs (e.g., 'Quão bonito!'). Use 'quanto' with nouns.
How It Connects
Related Patterns
- que/quem/onde/quando/como/quanto/por queQuestion Words
This is the broader category of question words that 'quanto' belongs to.
Foundations - Adjective Agreement
The rules for 'quanto' changing its ending are based on the fundamental principle of gender and number agreement.
Foundations - muito/poucoMuito/Pouco Agreement
Like 'quanto', the quantifiers 'muito' (much/many) and 'pouco' (little/few) must also agree with the noun they modify.
Level 2 - tão + Adjective + quanto/comoComparative of Equality
The word 'quanto' is also used in comparisons of equality to mean 'as'.
Level 1 - tanto/tanta/tantos/tantas + Noun + quantoEquality Comparison with Nouns
This pattern uses the demonstrative 'tanto' (so much) alongside 'quanto' for noun-based comparisons.
Level 2
Words in This Pattern
Practice quanto/quanta/quantos/quantas in Bubblegum
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