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.
Acabar is a regular -ar verb meaning “to finish, complete, come to an end.”
The reflexive construction, used mainly with pronominal verbs, can also be used passively to describe accidental and unplanned occurrences.
Caer – to fall – is irregular in the first person singular.
Spanish verb conjugations can be divided into two categories: simple tenses and compound tenses, and the latter can be further divided into two categories: progressive tenses and perfect tenses.
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 is a verb mood used for actions that are not guaranteed to occur; often they are dependent on certain conditions. It is equivalent to "would" in English.
To talk about something that would, could, or should have happened—but didn’t—you need the conditional perfect, also known as the past conditional.
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.