Pronominal verbs express an action marked by an unstressed pronoun that relates to the subject. Depending on context, that pronoun can indicate reflexivity, reciprocity, change of state, lexical nuance, or an impersonal or passive construction with se. They also appear in combination with other modules such as [Reflexive Verbs], [Reflexive Pronouns], and [Pronouns].

In reflexive uses, the action falls back on the same subject that performs it. The pronoun agrees with the grammatical person and is usually placed before the conjugated verb or attached to the infinitive, the gerund, and the affirmative imperative. Verbs such as lavarse, vestirse and ducharse follow this pattern very frequently.

IdeaIdea.	EjemploExample.
El sujeto realiza y recibe la acción.The subject performs and receives the action.	Ana se lava y queda lista para salir.Ana washes herself and is ready to go out.
El pronombre concuerda con la persona.The pronoun agrees with the person.	Yo me visto temprano para la escuela.I get dressed early for school.
La posición del pronombre depende de la forma verbal.The position of the pronoun depends on the verb form.	Voy a peinarme y después salgo.I am going to comb my hair and then I go out.

Reciprocal verbs express a mutual action between two or more participants. The pronoun signals that each member of the group acts on the others, as in abrazarse, encontrarse and besarse. The structure is similar to the reflexive, but the sense depends on there being a plurality of subjects.

IdeaIdea.	EjemploExample.
La acción va de un participante a otro.The action goes from one participant to another.	Los amigos se abrazan al llegar.Friends hug when they arrive.
El sentido exige al menos dos participantes.The meaning requires at least two participants.	María y Luis se encuentran en la plaza.María and Luis meet in the plaza.
El pronombre marca mutua relación.The pronoun marks a mutual relationship.	Los novios se besan al despedirse.The couple kiss each other as they say goodbye.

With se pronominal, the se form functions as a passive or as an impersonal construction. In the pronominal passive, the patient subject receives the action and the verb agrees with that subject, as in se vende una casa or se buscan soluciones. In the impersonal, the action is presented without an explicit agent and the verb appears normally in third person singular.

IdeaIdea.	EjemploExample.
La pasiva pronominal destaca el objeto afectado.The pronominal passive highlights the affected object.	Se vende una bicicleta nueva.A new bicycle is for sale.
El verbo concuerda con el sujeto paciente.The verb agrees with the patient subject.	Se buscan respuestas claras.Clear answers are sought.
La impersonal omite al agente.The impersonal omits the agent.	Se vive mejor con calma.Life is better with calm.

Some verbs are pronominal by their own meaning and do not usually appear without a pronoun. Arrepentirse, quejarse, and jactarse belong to this group, because the pronoun is part of the verb’s lexical entry. In these cases, the clitic does not add reflexivity nor reciprocity, but completes the verb.

IdeaIdea.	EjemploExample.
El pronombre forma parte del verbo.The pronoun is part of the verb.	Me arrepiento de haber llegado tarde.I regret having arrived late.
El significado no es reflexivo.The meaning is not reflexive.	Se queja del ruido nocturno.He complains about the nighttime noise.
El verbo exige la forma pronominal.The verb requires the pronominal form.	Ella se jacta de su logro.She brags about her achievement.

Some pronominal verbs add emphasis, duration or expressive effect without changing the basic action structure. Forms like comerse, beberse or tomarse can stress the totality, speed, or intensity of the event. This value varies by region and register, so nuance depends greatly on context.

IdeaIdea.	EjemploExample.
El pronombre puede intensificar la acción.The pronoun can intensify the action.	Se comió todo el pastel.He ate the whole cake.
El matiz puede señalar totalidad.The nuance may signal totality.	Se bebió el agua de un trago.He drank the water in one swallow.
El uso depende del contexto y la variedad.Usage depends on context and variety.	Nos tomamos un café rápido.We had a quick coffee.

Many verbs change meaning when they appear in pronominal form. Irse expresses exit or withdrawal, llevarse can mean take away or transport, and ponerse often indicates a change of state or sudden placement. These alternations are very frequent and it is useful to learn them as usage pairs.

IdeaIdea.	EjemploExample.
Irse indica salida o alejamiento.Irse indicates exit or withdrawal.	Me voy porque ya es tarde.I'm leaving because it's late.
Llevarse puede implicar tomar consigo.Llevarse can imply taking away with oneself.	Se llevó las llaves por error.He took the keys by mistake.
Ponerse suele indicar cambio de estado.Ponerse usually indicates a change of state.	Se puso nervioso antes del examen.He got nervous before the exam.

In pronominal verbs of the first conjugation, the pronoun combines with the corresponding verb form without altering the general conjugation scheme. Hablar yields me hablo, se habla and hablándose, with the pronoun placed before the conjugated verb or attached to the non-personal form. The verbal ending maintains the typical -ar verb pattern.

SujetoSubject.	VerboVerb.	EjemploExample.
YoI.	me habloI speak to myself.	Yo me hablo con calma y pienso bien.I talk to myself calmly and think carefully.
Él o ellaHe or she.	se hablaIt is spoken.	Se habla en voz baja y se escucha todo.Se habla in a low voice and one can hear everything.
GerundioGerund.	hablándosetalking to oneself.	Está hablándose solo mientras trabaja.He is speaking to himself while he works.

In pronominal verbs of the second conjugation, the pronoun accompanies the verb form and preserves the verb’s lexical base. Comer gives me como, se come, and comiéndose, with the same distribution of pronouns as in other tenses and non-personal forms. The pronominal value can be reflexive, intensifying, or part of the verb’s meaning.

SujetoSubject.	VerboVerb.	EjemploExample.
YoI.	me comoI eat up.	Yo me como la sopa muy rápido.I eat the soup very fast.
Él o ellaHe or she.	se comeIt is eaten.	Se come la fruta sin prisa.He eats the fruit without hurry.
GerundioGerund.	comiéndoseeating (it).	Está comiéndose el postre sonriendo.He is eating the dessert, smiling.

In the third conjugation there are pronominal forms with stem changes in the present, such as dormir which yields me duermo. These verbs keep the same pronoun placement logic, but may show internal irregularities specific to the verb. Dormirse is one of the most frequent examples and serves as a model for other stem-changing verbs.

SujetoSubject.	VerboVerb.	EjemploExample.
YoI.	me duermoI fall asleep.	Yo me duermo cuando termina la película.I fall asleep when the movie ends.
Él o ellaHe or she.	se duermeHe/she falls asleep.	Se duerme pronto porque está cansado.He falls asleep early because he is tired.
GerundioGerund.	durmiéndosesleeping.	Está durmiéndose en el sofá.He is falling asleep on the sofa.

Some pronominal verbs are irregular because the pronominal form introduces a special lexical or morphological change. Irse, ponerse, caerse, dormirse and quedarse are very common and must be learned with their full meaning, not just as the base verb plus pronoun. In several cases, the pronominal form expresses a new state, a transition or a different result from the simple verb.

IdeaIdea.	EjemploExample.
Irse expresa salida.Leaving expresses departure.	Se fue sin hacer ruido.He left without making a sound.
Ponerse expresa cambio de estado.Ponerse expresses a change of state.	Me puse contento al oír la noticia.I became happy upon hearing the news.
Quedarse expresa permanencia o resultado.Quedarse expresses permanence or result.	Se quedó en casa toda la tarde.He stayed at home all afternoon.

Pronouns attach to the infinitive, to the gerund, and to the affirmative imperative when the verb is not conjugated or when the command is affirmative. The infinitive and the gerund admit the attached pronoun, as in lavarse and lavándose, while the participle does not admit a separated clitic in the general rule. This distribution is essential for constructing correct periphrases and verbal sequences.

IdeaIdea.	EjemploExample.
El infinitivo admite pronombre unido al final.The infinitive allows the pronoun attached at the end.	Quiero lavarme antes de cenar.I want to wash up before dinner.
El gerundio admite pronombre unido al final.The gerund allows the pronoun attached at the end.	Está lavándose las manos.He is washing his hands.
El participio no lleva clítico separado.The participle does not take a separated clitic.	La forma correcta evita separar el pronombre.The correct form avoids separating the pronoun.

With a conjugated verb, the pronoun usually goes before the verb form. With an infinitive and gerund, the pronoun may be postponed and graphically attached to the verb. In the affirmative imperative, the pronoun is also placed at the end, and therefore the position of the clitic depends on the verbal structure and not only on the meaning.

IdeaIdea.	EjemploExample.
Antes del verbo conjugado.Before the conjugated verb.	Me lavo por la mañana.I wash myself in the morning.
Unido al infinitivo.Attached to the infinitive.	Voy a lavarme ahora.I'm going to wash myself now.
Unido al imperativo afirmativo.Linked to the affirmative imperative.	Lávate las manos.Wash your hands.

Pronominal verbs frequently appear in verbal periphrases that express initiation, immediacy or result. Ponerse a + infinitive indicates the sudden start of the action, echarse a + infinitive signals a brusque or emotional onset, and acabar + participle may express the final result of a process. These structures are well studied together with [Perífrasis Verbales].

IdeaIdea.	EjemploExample.
Ponerse a más infinitivo expresa inicio.Ponerse a + infinitive expresses onset.	Se puso a cantar de repente.He suddenly started to sing.
Echarse a más infinitivo expresa arranque brusco.Echarse a + infinitive expresses onset.	Se echó a correr al oír la alarma.He started running when he heard the alarm.
Acabar más se más participio expresa resultado.Acabar + participle expresses the result.	Acabó por dormirse en el tren.He ended up falling asleep on the train.

Pronominal verbs cover reflexive, reciprocal, inherent pronominal, intensifying uses and meaning changes that depend on context and usage tradition. Their behavior is also recognized by the placement of the pronoun, by the non-personal forms and by the presence of se passive or impersonal constructions. Among the first verbs to master are irse, ponerse, caerse, dormirse and quedarse, along with the common bases lavarse, vestirse and ducharse.