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In some verbs, the past tense, past participle, or both are identical in form to the basic (infinitive) form of the verb. This is the case with certain strong verbs, where historical sound changes have led to a leveling of the vowel modifications: for example, let has both past tense and past participle identical to the infinitive, while come ...
To conjugate something that is positive in the imperative mood for the tú form (which is used most often), conjugate for the tú form and drop the s. To conjugate something that is negative in the imperative mood for the tú form (which also is used most often), conjugate in the yo form, drop the o, add the opposite tú ending (if it is an -ar ...
The past participle of regular verbs is identical to the preterite (past tense) form, described in the previous section. For irregular verbs, see English irregular verbs . Some of these have different past tense and past participle forms (like sing–sang–sung ); others have the same form for both (like make–made–made ).
They are formed using the finite verb in its preterite (simple past) form. [2] Certain uses of the past tense may be referred to as subjunctives; however the only distinction in verb conjugation between the past indicative and past subjunctive is the possible use of were in the subjunctive in place of was. For details see English subjunctive.
The preterite or preterit (/ ˈ p r ɛ t ər ɪ t / PRET-ər-it; abbreviated PRET or PRT) is a grammatical tense or verb form serving to denote events that took place or were completed in the past; in some languages, such as Spanish, French, and English, it is equivalent to the simple past tense.
Similarly, the participle agrees with the subject when it is used with ser to form the "true" passive voice (e.g. La carta fue escrita ayer 'The letter was written [got written] yesterday.'), and also when it is used with estar to form a "passive of result", or stative passive (as in La carta ya está escrita 'The letter is already written.').
The form dé is so written to distinguish it from the preposition de. Both verbs are also irregular in the preterite and derived tenses: dar follows the pattern of regular -er/-ir verbs, while estar has an anomalous preterite stem and follows the corresponding common pattern:
The simple past is used for describing single occurrences or habitual occurrences in the past, and sometimes for states existing in the past with no connection to the present (or where such connection is irrelevant), and sometimes for states and sensual perceptions existing in the past. The past progressive (past continuous) is formed using the ...