Some Spanish -IAR verbs that are pronounced with stress on the I, and therefore need an acute accent on that letter in certain conjugations.
Spanish verbs that end in -uar are conjugated with the same endings as regular -ar verbs, but most -uar verbs require accents in certain conjugations.
The conditional is one of the simplest Spanish verb forms. There is only one set of endings and most verbs – even those which are irregular in the present tense – use their infinitive as the root of the conjugation.
The conditional perfect is a compound verb form, which means its conjugation has two components: the auxiliary verb haber in the conditional plus the past participle of the main verb.
The future is one of the simplest Spanish tenses. There is only one set of endings and most verbs – even those which are irregular in the present tense – use their infinitive as the root of the conjugation.
The Spanish verb haber has irregular conjugations.
The Spanish imperfect subjunctive has two complete sets of conjugations. Although you only need to memorize and use one or the other, you still need to be able to recognize both.
The passive voice has two parts: the conjugated verb ser + the past participle.
Most irregular verbs have an irregular stem as well as a special set of endings in the pretérito.
Verbs which are stem-changing in the present tense may or may not be in the pretérito.