Impersonal Constructions

Some Spanish sentences have no real subject at all, and others deliberately hide a subject that could technically be named. English handles both situations with filler words and vague pronouns — “it’s raining,” “there are three books,” “they say it’s going to rain,” “you never know” — and Spanish has its own dedicated toolkit for the same job, most of it built from small, unglamorous words that punch well above their size: hay, hace, se, and an unspoken ellos. This chapter gathers every strategy Spanish uses to build a sentence around an unspecified, generic, or entirely absent subject, and sorts out which tool fits which situation.

Core Pattern: Impersonal Hay — Existence With No Subject at All

Hay: there is / there are

A1

Hay states that something exists, without ever taking a subject — it stays exactly the same shape whether one thing exists or a thousand do:

“

Hay un libro sobre la mesa.

There is a book on the table.

“

Hay tres libros sobre la mesa.

There are three books on the table.

Hay across every tense

A2

Existential haber isn’t limited to the present — it conjugates across every tense Spanish has, always staying in this same invariant, subjectless third-person-singular shape:

Tense	Form	Example
Present	hay	Hay mucha gente aquí.
Preterite	hubo	Hubo un accidente ayer.
Imperfect	había	Había mucha gente en la fiesta.
Future	habrá	Habrá una reunión el lunes.
Conditional	habría	Habría más opciones si tuviéramos tiempo.
Present subjunctive	haya	Espero que haya suficiente comida.
Present perfect	ha habido	Ha habido varios cambios este año.

“

Había mucha gente en la fiesta, pero hubo un problema con la música.

There were a lot of people at the party, but there was a problem with the music.

Building Out: Hay Que — the Impersonal Obligation, Across Every Tense

Hay que in every tense

B1

Chapter 45 introduced hay que + infinitive as one of Spanish’s three obligation constructions — impersonal, with no specific person named as responsible — and promised this chapter would give it the same full-tense treatment as existential hay above, since it’s built from the exact same invariant verb form:

Tense	Form	Example
Present	hay que	Hay que reciclar más.
Preterite	hubo que	Hubo que llamar a un médico.
Imperfect	había que	Antes había que pedir cita por teléfono.
Future	habrá que	Habrá que revisar el contrato.
Conditional	habría que	Habría que avisar a los vecinos.
Present subjunctive	haya que	No creo que haya que preocuparse.

“

Habrá que esperar hasta mañana para saber los resultados.

It'll be necessary to wait until tomorrow to know the results.

For the full three-way contrast between hay que (impersonal), tener que (personal), and deber (soft advice) — the register ladder that makes these three genuinely different tools rather than synonyms — see Chapter 45; this chapter’s job is just hay que’s own shape across every tense.

Building Out: Weather & Time Impersonals

Weather expressions with hacer

A1

Spanish describes weather with impersonal hacer — invariant third-person singular, with no subject standing behind it (there’s no “it” doing the making, the way English’s dummy “it” implies):

“

Hace frío en Madrid en enero.

It's cold in Madrid in January.

“

Hace mucho calor hoy.

It's very hot today.

A small number of weather verbs (llover, nevar) work the same subjectless way without needing hacer at all — they only ever exist in the third-person singular:

“

Llueve mucho en el norte de España.

It rains a lot in northern Spain.

Es tarde, es temprano, and other impersonal ser expressions

A1

Ser + adjective builds a related family of subjectless expressions about time and general conditions:

“

Es tarde — deberíamos irnos.

It's late — we should go.

“

Es importante llegar a tiempo.

It's important to arrive on time.

Hace + time duration

A2

Hace also builds time-duration expressions, another subjectless use of the same invariant verb form. Placed before a past-tense verb, it means “ago”; placed with que before a present-tense verb, it means an action has been going on for a stretch of time:

“

Llegué a España hace una hora.

I arrived in Spain an hour ago.

“

Hace dos años que vivo en Madrid.

I've been living in Madrid for two years.

Nuance, Exceptions & Contrast: Three Ways to Hide a Subject

Two different senses of “impersonal”

B1

Everything covered so far — hay, weather hacer, es tarde, hace + time — shares one property: the verb has no subject slot at all. You could never attach a subject to hay even if you wanted to (“Yo hay” is simply ungrammatical, the same way Chapter 45 already flagged for hay que). That’s one sense of “impersonal”: grammatically subjectless.

The rest of this chapter covers a second, related but distinct sense: constructions Spanish uses to deliberately avoid naming a subject, even though the sentence structure could, in principle, have one. These constructions aren’t missing a subject slot — they’re filling it with something intentionally vague.

Impersonal se: se dice que…, se vive bien aquí

B1

Se plus a third-person-singular verb states something as a general truth or common belief, with no one in particular responsible for saying or doing it:

“

Se dice que va a llover este fin de semana.

They say it's going to rain this weekend. / It's said that it's going to rain this weekend.

“

Se vive bien en esta ciudad.

You live well in this city. / Life is good in this city.

“

Se puede aparcar aquí los domingos.

You can park here on Sundays.

This is a close cousin of Chapter 46’s passive-se (se venden casas), and it’s worth being precise about the difference now that both are on the table. Passive-se agrees in number with the noun that follows it, because that noun is genuinely the grammatical subject (se vende casa / se venden casas). True impersonal se never agrees with anything, because there’s no candidate for grammatical subject at all — vivir in se vive bien aquí has no object to promote, and the que-clause after se dice isn’t a noun that could trigger agreement either way:

“

Se venden casas en este barrio. / Se vive bien en este barrio.

Houses are sold in this neighborhood. / You live well in this neighborhood.

Third-person-plural impersonal: dicen que…

B1

A third strategy drops the subject pronoun entirely and lets a bare third-person-plural verb imply an unspecified “they” or “people in general”:

“

Dicen que va a llover este fin de semana.

They say it's going to rain this weekend.

“

Llaman a la puerta.

Someone's knocking at the door.

This looks like ordinary pro-drop at first (Chapter 11 covers Spanish’s general habit of omitting known subject pronouns), but the flavor is different: ordinary pro-drop omits a pronoun because the specific person is already clear from context or verb ending, while this impersonal use never had a specific person in mind to begin with — ellos here is genuinely nobody in particular, not merely unstated.

Completing the impersonal-subject family: se, uno, and third-person-plural

B2

Chapter 19 introduced uno as a third way of making a generic statement — Uno nunca sabe qué va a pasar — and flagged that it works differently from impersonal se: uno is itself the grammatical subject, sitting right where any other subject would, while impersonal se replaces the subject slot entirely rather than filling it with a placeholder word.

“

Uno se acostumbra a todo con el tiempo.

You get used to everything, given time.

Lined up together, Spanish’s three strategies for a deliberately vague human subject are:

Strategy	Example	Full treatment
Impersonal se	Se vive bien aquí.	This chapter
Impersonal uno	Uno nunca sabe.	Chapter 19
Third-person-plural impersonal	Dicen que va a llover.	This chapter

All three make a statement about people in general rather than a specific individual, but they carry slightly different flavors: se reads as the most neutral, almost official register (recipe instructions, general rules, signs); uno reads more personal and reflective, often including the speaker in the generalization; the bare third-person-plural leans toward hearsay, rumor, or an event with an unnamed cause (knocking, a rumor going around).

Bringing It Together

Faced with a sentence that has no clear specific subject, ask two questions in order. First: is there really no subject slot at all — are you talking about existence, weather, time, or duration? If so, reach for hay, hace, or es + adjective, and remember none of them ever conjugate to agree with anything around them. Second, if there is a subject slot but you want to leave it deliberately vague: is the sentence more like a general rule or fact (se + verb), a personal, reflective generalization that could include yourself (uno), or closer to hearsay/an unidentified someone (bare third-person plural)?

“

Hay mucha niebla hoy, así que habrá que conducir con cuidado. Dicen que va a mejorar mañana, pero uno nunca sabe con el tiempo — aquí se vive así, esperando a ver qué pasa.

There's a lot of fog today, so it'll be necessary to drive carefully. They say it's going to improve tomorrow, but you never know with the weather — that's how life is here, waiting to see what happens.

Where to Go Next

• Chapter 10, Telling Time & Dates — the time-expression grammar (es la una, hace…) that this chapter’s weather/time impersonals extend into full sentence patterns.
• Chapter 19, Neuter & Indefinite Pronouns — impersonal uno, the personal, subject-filling counterpart to this chapter’s subject-replacing impersonal se.
• Chapter 30, El Pretérito Perfecto — the he/has/ha vs. hay contrast this chapter’s existential treatment completes.
• Chapter 45, Verbal Periphrases — hay que’s place in the three-way obligation register alongside tener que and deber.
• Chapter 46, Passive Voice: Ser-Passive & Se-Passive — passive-se, the number-agreeing close cousin of this chapter’s invariant impersonal se.
• Chapter 50, Other Prepositions & Prepositional Phrases — the full hace…que vs. desde vs. desde hace time-expression grammar only previewed here.
• Chapter 11, Subject Pronouns & Pro-Drop — ordinary pro-drop, worth contrasting with this chapter’s deliberately vague third-person-plural impersonal.