what is it?
Spanish has a set of high-frequency quantifiers — todo, otro, demasiado, and nada/nadie — each with a grammatical behaviour that does not map neatly onto its English equivalent. Todo requires a determiner after it when it means «the whole of» or «all»; otro never takes an indefinite article; demasiado agrees in gender and number as an adjective but is invariable as an adverb; and nada and nadie are negative pronouns that require no second negative particle when they come before the verb.
when to use it
todo/toda/todos/todas — use to mean «all», «every», or «the whole of». When it modifies a noun, it must be followed by a definite article (el, la, los, las), a possessive (mi, tu, su…), or a demonstrative (este, ese…). Use the plural forms todos/todas for «all» with a countable noun.
otro/otra/otros/otras — use to mean «another» or «other». It already carries the sense of indefiniteness, so un/una is never added before it.
demasiado — use to mean «too much» or «too many» (adjective) or «too» (adverb). As an adjective before a noun it agrees in gender and number. As an adverb before an adjective or another adverb it is invariable.
nada / nadie — use nada for «nothing» (referring to things) and nadie for «nobody» (referring to people). When they appear before the verb, no second negative is needed. When they appear after the verb, no must precede the verb.
formation
The table below shows the forms of each quantifier. Nada and nadie are invariable pronouns and have only one form each.
| quantifier | masculine singular | feminine singular | masculine plural | feminine plural |
|---|---|---|---|---|
| todo | todo | toda | todos | todas |
| otro | otro | otra | otros | otras |
| demasiado (adjective) | demasiado | demasiada | demasiados | demasiadas |
| demasiado (adverb) | demasiado | demasiado | demasiado | demasiado |
| nada / nadie | nada | nadie | — | — |
todo + determiner + noun: the determiner (article, possessive, or demonstrative) is obligatory. The pattern is todo/a/os/as + [det] + noun, e.g. toda la clase, todos mis amigos, todo este tiempo.
otro directly before the noun: no article is inserted. The pattern is simply otro/a/os/as + noun, e.g. otro café, otras personas.
examples in context
common pitfalls
Dropping or misagreeing the determiner after todo.
Todo must be followed by a determiner when it modifies a noun. Omitting it or using the wrong form of todo is a very common error.
✗ *todo los estudiantesWrong — determiner missing and todo not plural.✓ todos los estudiantesCorrect — todos agrees with the plural noun and los is present.Adding un/una before otro.
English «another» is a contraction of «an other», which leads learners to write *un otro. In Spanish, otro already contains the indefinite sense — no article is added.
✗ *un otro caféWrong — un is not used before otro.✓ otro caféCorrect — otro directly before the noun.Leaving demasiado invariable before a noun.
When demasiado precedes a noun it is an adjective and must agree in gender and number with that noun. Only when it modifies an adjective or adverb does it stay invariable.
✗ *demasiado problemasWrong — demasiado does not agree with the masculine plural noun problemas.✓ demasiados problemasCorrect — demasiados agrees with the masculine plural noun.
Three sentences, graded here. Nothing is saved and no account is needed.
___ la ropa del armario está en el suelo y tengo que ordenarla ahora.
Fill in the blank with the correct form of todo.