Adverbial gerund, nada más + infinitive, and predicative participle clauses

Spanish has three closely related non-finite constructions that attach an extra clause to a main verb without using a conjunction. The adverbial gerund (gerundio adverbial) uses the gerund to express the method by which an action is carried out, or an action happening simultaneously with the main verb. Nada más + infinitive expresses an action that occurs immediately before the main event, with both verbs sharing the same subject. The predicative participle (participio predicativo) describes the state in which the object is found as a result of a prior action; because it modifies a noun, it must agree with it in gender and number. All three constructions compress information that in English typically requires a full subordinate clause.

• Adverbial gerund — method or simultaneous action. Use the gerund when the subordinate action describes how the main action is performed (manner), or when two actions by the same subject overlap in time. The gerund subject must be the same as the main-clause subject.

• Nada más + infinitive — immediate prior sequence, same subject. Use this construction when one action follows another with no gap, and both clauses share the same subject. It is equivalent to «en cuanto» or «al + infinitivo» but with a stronger sense of immediacy. When the subjects differ, a finite subordinate clause is required instead.

• Una vez + participle — completed prior event. Use this when a prior action must be fully completed before the main action begins. The participle agrees with the noun it relates to. It is equivalent to «después de que» + subjunctive or «una vez que» + indicative.

• Predicative participle — resulting state of the object. Use a past participle after verbs of perception or finding (encontrar, ver, dejar, tener…) to describe the state in which the direct object is found. The participle is not part of a compound tense here — it is an adjective-like modifier and must agree with the object in gender and number.

Each construction is built from a different non-finite form. The table below summarises the three patterns.

Gerund formation: -AR verbs → stem + -ando (hablar → hablando); -ER/-IR verbs → stem + -iendo (leer → leyendo, escribir → escribiendo). Stem-changing -IR verbs apply the stem change in the gerund (pedir → pidiendo, dormir → durmiendo).

Past participle agreement: The past participle used predicatively or after «una vez» agrees with the noun it relates to: -o (masc. sg.), -a (fem. sg.), -os (masc. pl.), -as (fem. pl.). The participle inside a compound tense (haber + participle) never agrees — that is a separate construction.

• Predicative participle not agreeing with the object. The participle is an adjective-like modifier, so it must match the gender and number of the noun it describes. «La tienda» is feminine singular, so the participle must be «cerrada», not «cerrado».

  ✗ Encontré la tienda cerrado.

  ✓ Encontré la tienda cerrada.

• Using nada más + infinitive with different subjects. «Nada más» + infinitive requires both clauses to share the same subject. When the subjects differ, you must either restructure the sentence so the subjects match, or use a finite clause (e.g. «en cuanto llegué yo, tú te fuiste»).

  ✗ Nada más llegar yo, tú te fuiste. (different subjects: yo / tú)

  ✓ En cuanto llegué yo, tú te fuiste.

• Using the gerund instead of the participle to describe a resulting state. The gerund describes an ongoing or simultaneous action, not a state. To describe the condition in which an object is found, use the past participle. «Cerrando» would imply the shop was in the process of closing at that moment — not that it was already shut.

  ✗ Encontré la tienda cerrando.

  ✓ Encontré la tienda cerrada.