Indicative

Statements of fact, certainty and objective reality

Not every form is used. An impersonal weather verb: it is only used in the third person singular (truena, tronó). The third person plural appears only in figurative use (tronaban los cañones). Forms that are not used are shown as "-".

Present

tronar: Present
yo-
tú-
él/ella/ustedtruena
nosotros-
vosotros-
ellos/ellas/ustedes-
Stem change
o → ue in yo, tú, él, ellos: trueno, truenas, truena, truenan.

Preterite

tronar: Preterite
yo-
tú-
él/ella/ustedtronó
nosotros-
vosotros-
ellos/ellas/ustedes-

Imperfect

tronar: Imperfect
yo-
tú-
él/ella/ustedtronaba
nosotros-
vosotros-
ellos/ellas/ustedes-

Future

tronar: Future
yo-
tú-
él/ella/ustedtronará
nosotros-
vosotros-
ellos/ellas/ustedes-

Conditional

tronar: Conditional
yo-
tú-
él/ella/ustedtronaría
nosotros-
vosotros-
ellos/ellas/ustedes-

Gerund and past participle

tronando
used in the present progressive
tronado
used in the perfect tenses

Present perfect, subjunctive and imperative

Present perfect

tronar: Present perfect
yo-
tú-
él/ella/ustedha tronado
nosotros-
vosotros-
ellos/ellas/ustedes-
tronar: Present subjunctive
yo-
tú-
él/ella/ustedtruene
nosotros-
vosotros-
ellos/ellas/ustedes-
tronar: Imperative
yo-
tú-
él/ella/usted-
nosotros-
vosotros-
ellos/ellas/ustedes-

More tenses

The other perfect tenses (haber + past participle) and the past subjunctive

The imperfect subjunctive has two forms: -ra (more common in speech) and -se (more formal; still heard in speech in Spain, mainly written in Latin America). Both are equally correct and interchangeable.

Past perfect

tronar: Past perfect
yo-
tú-
él/ella/ustedhabía tronado
nosotros-
vosotros-
ellos/ellas/ustedes-

Future perfect

tronar: Future perfect
yo-
tú-
él/ella/ustedhabrá tronado
nosotros-
vosotros-
ellos/ellas/ustedes-
tronar: Conditional perfect
yo-
tú-
él/ella/ustedhabría tronado
nosotros-
vosotros-
ellos/ellas/ustedes-
tronar: Imperfect subjunctive (-ra)
yo-
tú-
él/ella/ustedtronara
nosotros-
vosotros-
ellos/ellas/ustedes-

Imperfect subjunctive (-se)

Literary / Spain
tronar: Imperfect subjunctive (-se)
yo-
tú-
él/ella/ustedtronase
nosotros-
vosotros-
ellos/ellas/ustedes-
tronar: Present perfect subjunctive
yo-
tú-
él/ella/ustedhaya tronado
nosotros-
vosotros-
ellos/ellas/ustedes-
tronar: Pluperfect subjunctive
yo-
tú-
él/ella/ustedhubiera tronado
nosotros-
vosotros-
ellos/ellas/ustedes-

Practise tronar

Test your knowledge of tronar conjugations across multiple tenses, or take a Quick Test under any table.

Fill in the whole table →

More examples with tronar

  • Tronar toda la nocheTo thunder all night
  • Tronar a lo lejosTo thunder in the distance
  • Tronar con fuerzaTo thunder loudly

Practice: tronar to thunder

Indicative
Subjunctive
Perfect tenses