The pretérito perfecto de subjuntivo, the third tense of the subjunctive mood and first of the compound tenses of subjunctive is a very easy tense. It is formed the same way as pretérito perfecto de indicativo: auxiliary verb haber and past participle. The only difference here is that haber appears in the present subjunctive tense.

Let’s now practice the formation of this tense. Conjugate the verb trabajar, according to the indicated subject pronouns. Use small letters. Press Tab to check your answer. You might wish to use one of the two following on-line helpers to complete your ejercicio: conjugador and acentos en español. ¡Suerte!