Subjuntivo: the mood for what doesn't exist yet
Until this wave every verb stood in the indicative: it reports what is. Spanish needs more than that. When speech turns to the wished-for, the demanded, the possible or the not-yet-happened, the verb changes its ending wholesale and becomes subjuntivo. English barely shows the mood — a relic or two ('I suggest that he be on time', 'if I were you') — which is why the shift is easy to miss and easy to hear. For…
How it works
Until this wave every verb stood in the indicative: it reports what is. Spanish needs more than that. When speech turns to the wished-for, the demanded, the possible or the not-yet-happened, the verb changes its ending wholesale and becomes subjuntivo. English barely shows the mood — a relic or two ('I suggest that he be on time', 'if I were you') — which is why the shift is easy to miss and easy to hear.
The form is a simple vowel exchange: in -ar verbs an e appears in the ending, in -er and -ir verbs — an a. Firmar → que yo firme, vender → que yo venda, recibir → que yo reciba. The stem is taken not from the infinitive but from the 'I' form of the present, and all its irregularities ride along: tener → tengo → que tenga, hacer → hago → que haga, poder → puedo → que pueda. Six verbs are irregular outright: ser → sea, ir → vaya, saber → sepa, haber → haya, estar → esté, dar → dé.
Where it is obligatory in this wave. After para que — 'so that someone does something': Te lo doy por escrito para que no haya dudas. After expressions of duty and judgement: Es obligatorio que firmes las dos copias, Es normal que pidan el original. After wishes and requests: Quiero que me lo confirmes, Le pido que avise antes. After cuando about the future: Cuando llegue el paquete, te llamo — 'when it arrives', not 'when it arrives regularly'.
The rule that saves time: two subjects — subjuntivo, one — the infinitive. Quiero firmar (I want, and I will sign) against Quiero que firmes (I want, and you will sign). The first is a plain infinitive with no que at all; the second demands both que and the subjuntivo. Mixing up these two constructions is the most common mistake at this level.
Finally, si — 'if' — takes no subjuntivo, against all expectation: Si firmas hoy, te hago descuento. Here Spanish stays in the indicative — exactly the spot where the English 'would' misleads.
Table
| infinitive | the yo form now | subjuntivo | example |
|---|---|---|---|
| firmar | firmo | que firme | para que firme |
| vender | vendo | que venda | quiero que venda |
| recibir | recibo | que reciba | cuando reciba |
| tener | tengo | que tenga | es normal que tenga |
| hacer | hago | que haga | para que lo haga |
| ser | — | que sea | es raro que sea así |
| ir | — | que vaya | quiero que vaya |
| saber | — | que sepa | para que lo sepas |
By example
- Es obligatorio que el contrato esté por escritoThe contract is required to be in writing
- Te lo mando ahora para que lo confirmes hoy mismoI am sending it to you now so you can confirm it today
- Cuando llegue el pedido, revisa la facturaWhen the order arrives, check the invoice
- Quiero rescindir el contrato, pero quiero que me devuelvan la fianzaI want to cancel the contract, but I want them to return my deposit
How the rule settles in your head
A rule is not memorized from an explanation. It is memorized from an attempt to use it and a mistake — that is why the app delivers it mixed in with words, not as a separate lesson: it resurfaces exactly where you forgot it.
Frequently asked
Subjuntivo: how does it work in Spanish?
Until this wave every verb stood in the indicative: it reports what is. Spanish needs more than that. When speech turns to the wished-for, the demanded, the possible or the not-yet-happened, the verb changes its ending wholesale and becomes subjuntivo. English barely shows the mood — a relic or two…
What does it look like in an example sentence Spanish?
“Es obligatorio que el contrato esté por escrito” — The contract is required to be in writing. A rule is easier to test on sentences like this than to memorize as a wording: what surfaces in conversation is the sentence.