Mastering Non-Finite Verb Forms & Verbal Periphrases
Welcome to your complete grammar guide for Non-Finite Verb Forms (formas no personales) and Verbal Periphrases (perífrasis verbales) for Pearson Edexcel A Level Spanish (9SP0). Whether you are aiming to secure full marks in the Paper 1 translation, craft sophisticated critical essays and translations in Paper 2, or demonstrate top-band language range in your Paper 3 speaking exam, mastering these structures is essential. Don't worry if these terms sound technical at first—we will break down every form, rule, and exam trick step by step!
---Part 1: The Three Non-Finite Verb Forms (Formas no personales)
Non-finite verbs are verb forms that do not change for person (yo, tú, ella, etc.) or number. Spanish has three non-finite forms: the Infinitive, the Gerund, and the Past Participle.
1. The Infinitive (El infinitivo)
The infinitive is the base dictionary form of a verb. It always ends in -ar (e.g., hablar), -er (e.g., comer), or -ir (e.g., vivir).
There is also the Compound Infinitive (infinitivo compuesto), formed with haber + past participle (e.g., haber terminado – "to have finished").
Key Syntactic Functions of the Infinitive:
1. Nominal Function (Acting as a Noun or Subject):
Unlike English, which uses the -ing form as a noun ("Smoking is bad"), Spanish uses the infinitive as a masculine singular noun.
• Fumar es perjudicial. (Smoking is harmful.)
• El leer abre la mente. (Reading opens the mind.)
2. Directly After Prepositions:
In Spanish, any verb that directly follows a preposition (such as antes de, después de, para, por, sin, en) must be in the infinitive.
• Antes de salir, apaga la luz. (Before leaving, turn off the light.)
• Después de comer, dimos un paseo. (After eating, we went for a walk.)
• Gracias por venir. (Thank you for coming.)
• Lo hizo sin saber la verdad. (He did it without knowing the truth.)
3. The Temporal Construction "al + infinitive":
This structure translates to "upon doing [something]" or "when [someone] did [something]".
• Al llegar a Madrid, llamó a sus padres. (Upon arriving in Madrid / When he arrived in Madrid, he called his parents.)
4. Direct Object of Modal & Semi-Auxiliary Verbs:
Used immediately after verbs like deber, poder, querer, saber, and soler without any intervening preposition.
• Suelo estudiar por la tarde. (I usually study in the afternoon.)
• Debemos proteger el medio ambiente. (We must protect the environment.)
Key Takeaway for Infinitives: Whenever you want to translate an English "-ing" that acts as a noun or comes after a preposition ("before leaving", "thank you for helping"), always use the Spanish infinitive, never the gerund!
---2. The Gerund (El gerundio)
The Spanish gerund corresponds to the English "-ing" when describing an action in progress or the means/manner of doing something.
Regular Formation:
• -ar verbs: replace ending with -ando (e.g., hablar \(\rightarrow\) hablando)
• -er / -ir verbs: replace ending with -iendo (e.g., comer \(\rightarrow\) comiendo; vivir \(\rightarrow\) viviendo)
Stem-Changing & Irregular Gerunds:
1. Stem-changing -ir verbs: The stem vowel changes from \(e \rightarrow i\) or \(o \rightarrow u\):
• decir \(\rightarrow\) diciendo
• pedir \(\rightarrow\) pidiendo
• sentir \(\rightarrow\) sintiendo
• dormir \(\rightarrow\) durmiendo
• morir \(\rightarrow\) muriendo
2. Orthographic Changes (Vowel Stems): When the stem ends in a vowel, the -iendo changes to -yendo to prevent three consecutive vowel sounds:
• leer \(\rightarrow\) leyendo
• creer \(\rightarrow\) creyendo
• construir \(\rightarrow\) construyendo
• traer \(\rightarrow\) trayendo
• oír \(\rightarrow\) oyendo
• ir \(\rightarrow\) yendo
Syntactic Functions of the Gerund:
1. Adverbial Function (Manner, Means, Cause): Explains how or by what means an action is achieved.
• Estudiando mucho, aprobó el examen. (By studying hard, she passed the exam.)
2. Simultaneous Actions: Indicates an action taking place at the same time as the main verb.
• Salió de la habitación llorando. (He left the room crying.)
3. Continuous / Progressive Aspect: Combined with auxiliary verbs such as estar, seguir, continuar, or llevar.
Crucial Pitfall Alert: The Spanish gerund cannot modify a noun like an adjective. You cannot translate "a box containing books" as "*una caja conteniendo libros". You must use a relative clause: una caja que contiene libros (rare lexicalised exceptions include agua hirviendo - boiling water, and persona ardiendo - person on fire).
---3. The Past Participle (El participio)
The past participle corresponds to English "-ed" / "-en" forms (e.g., spoken, eaten, decided).
Regular Formation:
• -ar verbs: replace ending with -ado (e.g., hablar \(\rightarrow\) hablado)
• -er / -ir verbs: replace ending with -ido (e.g., comer \(\rightarrow\) comido; vivir \(\rightarrow\) vivido)
Essential Irregular Past Participles:
Commit these twelve high-frequency irregulars to memory:
• abrir \(\rightarrow\) abierto
• cubrir \(\rightarrow\) cubierto
• decir \(\rightarrow\) dicho
• escribir \(\rightarrow\) escrito
• hacer \(\rightarrow\) hecho
• morir \(\rightarrow\) muerto
• poner \(\rightarrow\) puesto
• romper \(\rightarrow\) roto
• ver \(\rightarrow\) visto
• volver \(\rightarrow\) vuelto
• resolver \(\rightarrow\) resuelto
• satisfacer \(\rightarrow\) satisfecho
Accent Mark Rule: In regular -er and -ir verbs where the stem ends in a vowel, place an accent on the í to maintain the correct syllable stress:
• caer \(\rightarrow\) caído
• leer \(\rightarrow\) leído
• oír \(\rightarrow\) oído
• traer \(\rightarrow\) traído
Rules of Agreement:
Rule 1: Compound Tenses with "haber" = NEVER AGREE (Invariable -o):
When used after any form of the auxiliary verb haber (e.g., he, habías, han), the participle always ends in -o regardless of the gender or number of the subject or object.
• Ellas han llegado. (NOT *llegadas)
• Hemos comido las manzanas. (NOT *comidas)
Rule 2: As an Adjective or with "ser" / "estar" = MUST AGREE:
When the participle describes a noun or is used with ser (passive voice) or estar (resulting state), it agrees in gender and number (-o, -a, -os, -as).
• La puerta está cerrada. (The door is closed.)
• Los libros fueron escritos en el siglo XX. (The books were written in the 20th century.)
Rule 3: Absolute Participle Clauses (Cláusulas absolutas):
When opening a clause to set the context of a completed action, the participle agrees with the noun that immediately follows it.
• Terminada la reunión, todos se fueron. (The meeting finished, everyone left.)
Part 2: Verbal Periphrases (Perífrasis verbales)
A verbal periphrase is a grammatical combination of an auxiliary verb (which is conjugated) + [an optional preposition or link word] + a non-finite verb (infinitive, gerund, or participle). It expresses specific aspects of an action such as beginning, duration, intention, or recent completion.
1. "ir a + infinitive" (Immediate Future / Intention)
Formula: [Conjugated ir] + a + [Infinitive]
Meaning: "Going to do something" — expresses intention, scheduled future events, or high certainty.
Usage across Key Tenses:
• Present Indicative: Expresses an intended future action.
Voy a estudiar medicina en la universidad. (I am going to study medicine at university.)
• Imperfect Indicative: Expresses an interrupted, changed, or unfulfilled past intention.
Iba a llamarte, pero se me olvidó. (I was going to call you, but I forgot.)
2. "estar + gerund" (Progressive Action in Progress)
Formula: [Conjugated estar] + [Gerund]
Meaning: Expresses an action that is actively taking place at a specific moment in time (progressive aspect).
• Los alumnos están preparando el examen en este momento. (The students are preparing for the exam right now.)
• Estaba durmiendo cuando sonó el teléfono. (I was sleeping when the phone rang.)
Crucial Difference from English: In English, we frequently use the progressive form for scheduled future events (e.g., "I am travelling to Spain next week"). Spanish never does this. You must use the present indicative or ir a + infinitive:
• Correct: Viajo a España la semana que viene OR Voy a viajar a España la semana que viene.
• Incorrect: *Estoy viajando a España la semana que viene.
3. "acabar de + infinitive" (Immediate Past Completion)
Formula: [Conjugated acabar] + de + [Infinitive]
Meaning: "To have just done something" — communicates an action completed moments before.
Tense Constraints:
• Present Indicative: Recent past relative to the present moment.
Acabo de recibir la carta hoy. (I have just received the letter today.)
• Imperfect Indicative: An action that had just occurred relative to another past event.
Acababa de salir cuando empezó a llover. (He had just left when it began to rain.)
Exam Warning: Do not use the perfect tense (*He acabado de llegar) to say "I have just arrived". In Spanish, the simple present indicative Acabo de llegar is the correct idiomatic structure!
---4. "llevar + time duration + gerund" (Ongoing Duration)
Formula: [Conjugated llevar] + [Duration of time] + [Gerund]
Meaning: "To have been doing something for [duration]" — indicates an action that started in the past and continues into the present.
• Llevo tres años viviendo en esta ciudad. (I have been living in this city for three years.)
• ¿Cuánto tiempo llevas estudiando español? (How long have you been studying Spanish?)
Equivalent Structure: This has the exact same meaning as present tense + desde hace:
Llevo tres años viviendo aquí \(\equiv\) Vivo aquí desde hace tres años.
Negative Alternative with "sin + infinitive":
To express how long you have not done something, use llevar + [duration] + sin + [Infinitive]:
• Llevo dos meses sin fumar. (I haven't smoked for two months / I have gone two months without smoking.)
Part 3: Clitic Pronoun Placement & Written Accents
When you use object pronouns (direct/indirect: me, te, lo, la, le, nos, os, los, las, les, se) or reflexive pronouns with verbal periphrases, Spanish gives you a flexible choice of two positions:
The Dual Placement Rule
Position A (Proclitic): Place the pronoun(s) before the conjugated auxiliary verb.
• Se lo voy a decir.
• Me estoy lavando.
• Nos acaba de ver.
Position B (Enclitic): Attach the pronoun(s) directly to the end of the non-finite verb (infinitive or gerund) as a single word.
• Voy a decírselo.
• Estoy lavándome.
• Acaba de vernos.
The Written Accent Rule (Regla de acentuación)
When attaching pronouns to the end of a gerund or a multi-syllable infinitive, you add syllables to the word. This pushes the natural stress back, creating an esdrújula or sobresdrújula word. You must add a written graphic accent (tilde) to preserve the original stress sound!
• haciendo + lo \(\rightarrow\) haciéndolo
• explicando + se + lo \(\rightarrow\) explicándoselo
• decir + se + lo \(\rightarrow\) decírselo
Quick Revision Checklist & Top Examiner Pitfalls
Before your exam, double-check that you can avoid these classic traps identified in Edexcel examiner reports:
1. English "-ing" vs. Spanish Infinitive: Never write "*Fumando es malo" or "*Antes de saliendo". Use Fumar es malo and Antes de salir.
2. Participle Agreement with "haber": Never make the past participle agree after haber (Write Ellas han hablado, never "*Ellas han habladas").
3. Participle Agreement with "estar" / "ser": Always make the participle agree when describing a noun or state (Write Las ventanas están rotas, never "*están roto").
4. "estar + gerund" for the future: Never use progressive forms for scheduled future events. Use Voy a viajar or Viajo.
5. Forgotten Accents on Attached Gerunds: Remember to place the accent mark when attaching object pronouns to gerunds (escuchando \(\rightarrow\) escuchándolo).
6. Correct Structure for "llevar": Use Llevo dos años viviendo aquí, never blend it with "*Llevo dos años que vivo aquí".