Mastering Voice, the Passive, and Ser vs Estar in AQA AS Spanish
Welcome to your complete revision guide for Voice and the Auxiliary Verbs Ser and Estar! If you have ever wondered how to say "the bridge was built", "how do you get to the station?", or why a door can be both "cerrada" with ser and "cerrada" with estar, this chapter is here to make everything crystal clear.
In AQA AS Spanish (Specification 7691), mastering voice and understanding how to structure passive and impersonal sentences will instantly elevate your writing in Paper 2, boost your translation accuracy in Paper 1, and add natural fluency to your speaking in Paper 3. Don't worry if these structures feel a bit unfamiliar at first—we will break down every single rule step-by-step with clear examples.
---1. The Fundamentals: Ser vs Estar
Before diving into the passive voice, it is essential to have a rock-solid grasp of the two Spanish verbs meaning "to be": ser and estar. Choosing the right verb completely changes your sentence's meaning.
Core Uses of Ser
Think of ser as expressing the identity, nature, or permanent definition of something.
• Identity, Nationality, Origin, and Profession: Used to define what someone or something is.
Example: Es profesora. (She is a teacher.)
Example: Soy de Madrid. (I am from Madrid.)
• Inherent Qualities and Essential Characteristics: Traits that define the core nature of a person or object.
Example: El hielo es frío. (Ice is cold.)
Example: Es un hombre generoso. (He is a generous man.)
• Time, Date, and Seasons: Telling time or describing days and dates.
Example: Son las tres. (It is three o'clock.)
Example: Es lunes. (It is Monday.)
• Material and Possession: What something is made of or who owns it.
Example: La mesa es de madera. (The table is made of wood.)
Example: El coche es de Juan. (The car is Juan's.)
• Location of Events and Gatherings: Where an organized event takes place.
Example: El concierto es en el estadio. (The concert is at the stadium.)
• The True (Action) Passive: Combining ser with a past participle to show an action performed on a subject.
Example: El libro fue escrito por García Márquez. (The book was written by García Márquez.)
Core Uses of Estar
Think of estar as expressing physical placement, temporary conditions, or states that result from a change.
• Physical Location of People, Places, and Objects: Pinpointing where a physical entity is located.
Example: Madrid está en España. (Madrid is in Spain.)
Example: Juan está en casa. (Juan is at home.)
• Temporary or Fluctuating States, Conditions, and Moods: How someone feels or the condition something is currently in.
Example: Estoy cansado. (I am tired.)
Example: Está contento. (He is happy.)
• Continuous Tenses: Formed with estar + gerund.
Example: Está hablando. (He is speaking.)
• Resulting State After an Action: Formed with estar + past participle.
Example: La puerta está cerrada. (The door is closed / in a closed state.)
Crucial Meaning Shifts: Adjectives that Change with Ser and Estar
Some adjectives change their meaning entirely depending on whether you use ser or estar:
• Ser listo = to be clever / smart | Estar listo = to be ready
• Ser aburrido = to be boring | Estar aburrido = to be bored
• Ser rico = to be wealthy | Estar rico = to be delicious
• Ser bueno = to be a good person / high quality | Estar bueno = to taste good / to be in good health / attractive
Key Takeaway for Ser vs Estar: Use ser for definitions, essential traits, time, event locations, and action passives. Use estar for physical locations, moods, temporary conditions, and resulting states.
---2. The True (Action) Passive: Ser + Past Participle
In active sentences, the subject does the action (e.g., "García Márquez wrote the book"). In passive sentences, the grammatical subject receives the action (e.g., "The book was written by García Márquez").
The Formula
[Subject] + [Conjugated tense of Ser] + [Past Participle] (+ por + [Agent])
How It Works and the Participle Agreement Rule
The past participle in this construction functions like an adjective. It must agree in gender and number with the grammatical subject receiving the action.
• Singular Masculine Subject:
El libro fue escrito por García Márquez. (The book was written by García Márquez.)
(Subject: "El libro" [masculine singular] \(\rightarrow\) "escrito")
• Singular Feminine Subject:
La ley fue aprobada por el parlamento. (The law was approved by parliament.)
(Subject: "La ley" [feminine singular] \(\rightarrow\) "aprobada")
• Plural Feminine Subject:
Las casas fueron destruidas por la tormenta. (The houses were destroyed by the storm.)
(Subject: "Las casas" [feminine plural] \(\rightarrow\) "destruidas")
When to Use It
The ser + past participle passive is formal and literary. You will see it constantly in journalism, historical accounts, literature, and formal reports. However, Spanish speakers avoid overusing it in casual conversation, preferring the reflexive passive or active voice instead.
Key Takeaway: When using ser + past participle, an action is occurring, and the past participle must match the subject in both gender and number.
---3. The Resultative State: Estar + Past Participle
While ser + past participle describes the action taking place, estar + past participle describes the state or condition left behind after an action has already finished.
The Formula
[Subject] + [Conjugated tense of Estar] + [Past Participle]
Comparing Action vs State
Let's look at a classic comparison to see how the meaning shifts:
• Action Passive (Ser):
La puerta fue cerrada a las diez.
Meaning: The door was closed at ten (someone physically performed the action of closing it at that time).
• Resultative State (Estar):
La puerta está cerrada.
Meaning: The door is closed (it is currently sitting in a closed condition; we are describing its state, not the act of closing it).
Participle Agreement Rule
Just like with ser, the past participle following estar acts as an adjective and must agree in gender and number with the subject:
• El documento está firmado. (The document is signed.)
• Las ventanas están abiertas. (The windows are open.)
• La tienda estaba cerrada. (The shop was closed.)
Key Takeaway: If you are describing the resulting condition of something rather than the action being performed upon it, use estar + agreeing past participle.
---4. The Reflexive Passive (Pasiva Refleja)
In Spanish, the most natural way to express a passive idea when the person doing the action (the agent) is unknown, unimportant, or obvious is the Reflexive Passive (la pasiva refleja).
The Formula
se + [Verb in 3rd Person Singular or Plural] + [Grammatical Subject (typically inanimate)]
The Core Agreement Rule
The verb in a reflexive passive sentence must agree in number (singular or plural) with the grammatical subject that follows it:
• Singular Subject:
Se construyó el puente para unir a las comunidades. (The bridge was built to unite the communities. — Official AQA Specification Example)
(Subject: "el puente" [singular] \(\rightarrow\) Verb: "se construyó" [singular])
• Plural Subject:
Se construyeron los puentes para unir a las comunidades. (The bridges were built to unite the communities.)
(Subject: "los puentes" [plural] \(\rightarrow\) Verb: "se construyeron" [plural])
Se venden pisos. (Flats are sold / Flats for sale.)
(Subject: "pisos" [plural] \(\rightarrow\) Verb: "se venden" [plural])
The Golden Rule: No Agent with Pasiva Refleja!
You must never add an agent phrase (por + person) to a reflexive passive sentence. The entire purpose of the reflexive passive is that the agent is absent or unstated.
• Correct: Se construyó el puente. (The bridge was built.)
• Correct: El puente fue construido por los ingenieros. (The bridge was built by the engineers.)
• INCORRECT: Se construyó el puente por los ingenieros. ❌ (Never mix se with por + agent!)
Key Takeaway: The reflexive passive uses se + 3rd person verb. If the noun is singular, make the verb singular. If the noun is plural, make the verb plural. Never use por + agent with this construction.
---5. Impersonal Se (Se Impersonal)
While the reflexive passive refers to a specific inanimate subject, Impersonal Se is used to make general statements where there is no specific grammatical subject at all. It translates to English as "one", "people", "you" (in general), or "they" (unspecified).
The Formula
se + [Verb strictly in 3rd Person Singular] (+ Direct Object / Prepositional Phrase / Clause)
The Rule of Strict Singularity
Unlike the reflexive passive, the verb with impersonal se is always strictly 3rd person singular. It never changes to plural.
• AQA Specification Example:
¿Cómo se llega a la estación? (How does one get to the station? / How do you get to the station?)
• General Statements:
En España se come muy bien. (In Spain, people eat very well / one eats very well.)
Se dice que va a llover. (People say that it is going to rain / It is said that it will rain.)
Impersonal Se with People (Personal "a")
When an action involves people as direct objects, Spanish uses the preposition a (the personal a). Because the noun is preceded by a preposition, it cannot be the grammatical subject, so the verb remains strictly singular:
• Se busca a los culpables. (People are looking for the culprits / The culprits are being sought.)
(Even though "los culpables" is plural, the verb remains singular "se busca" because of the personal "a".)
Key Takeaway: Impersonal se translates general statements like "one does" or "people do", and the verb is always 3rd person singular.
---6. Summary Guide: Choosing the Correct Passive or Impersonal Form
When translating or writing in your exams, follow this quick decision process:
1. Is there a named agent (e.g., "by the author", "by the government")?
\(\rightarrow\) Use ser + past participle (+ por + agent).
Example: La novela fue escrita por Cervantes.
2. Are you describing a condition/state resulting from an earlier action?
\(\rightarrow\) Use estar + past participle.
Example: La carta ya está escrita.
3. Is an action happening to a thing, without a named agent?
\(\rightarrow\) Use reflexive passive (se + singular/plural verb).
Example: Se publicaron los resultados.
4. Are you making a general statement ("one", "people", "how does one...")?
\(\rightarrow\) Use impersonal se (se + singular verb).
Example: ¿Se puede entrar?
7. Common Examiner Pitfalls & How to Avoid Them
Examiners frequently report specific mistakes in AS Level scripts. Keep these top pitfalls in mind so you can avoid them effortlessly:
• Pitfall 1: Agreement Failure in Reflexive Passive
Incorrect: ❌ Se construyó los puentes.
Correct: ✓ Se construyeron los puentes.
Why: "Los puentes" is plural, so the verb must be 3rd person plural.
• Pitfall 2: Making Impersonal Se Plural with Personal "a"
Incorrect: ❌ Se buscan a los candidatos.
Correct: ✓ Se busca a los candidatos.
Why: The personal "a" makes "los candidatos" a prepositional object, meaning the structure is impersonal and the verb must remain singular.
• Pitfall 3: Overusing the Ser Passive (Anglicism)
Unnatural: ❌ El español es hablado aquí.
Natural Spanish: ✓ Aquí se habla español.
Why: Avoid translating English passives word-for-word with ser when no agent is mentioned. Use the reflexive passive instead.
• Pitfall 4: Adding an Agent to a Reflexive Passive
Incorrect: ❌ Se vendió la casa por el agente.
Correct: ✓ La casa fue vendida por el agente. (or simply: Se vendió la casa.)
Why: Por + agent is grammatically incompatible with reflexive se.
• Pitfall 5: Forgetting Past Participle Agreement
Incorrect: ❌ Las decisiones fueron tomado.
Correct: ✓ Las decisiones fueron tomadas.
Why: In both ser and estar passive/resultative structures, the participle must match feminine/plural subjects.
• Pitfall 6: Confusing Action vs State
Incorrect: ❌ La tienda es cerrada ahora. (Trying to say "the shop is currently shut")
Correct: ✓ La tienda está cerrada ahora.
Why: Being shut right now is a state (estar), not an ongoing action performed by an agent (ser).
• Pitfall 7: Using Estar for Event Locations
Incorrect: ❌ La fiesta está en mi casa.
Correct: ✓ La fiesta es en mi casa.
Why: The location of events, parties, and meetings always takes ser.
Quick Revision Checklist
• I can explain the difference between ser (identity, traits, events, action passive) and estar (location, states, results).
• I know that past participles with ser and estar must agree in gender and number with the subject.
• I can conjugate the reflexive passive with both singular (se construyó) and plural (se construyeron) subjects.
• I never attach por + agent to a reflexive passive sentence.
• I keep the verb strictly 3rd person singular for impersonal se (¿Cómo se llega...? / Se busca a...).