1.Spanish lesson. Conjugating the Conditional Tense
The conjugation of the conditional tense is fairly straightforward, because all three types of verbs (-ar, -er and -ir) use the same ending, and the ending is applied to the infinitive rather than to a portion of the verb. Also, there are few irregular verbs in the conditional.
These are the endings that are applied to turn an infinitive to a verb in the conditional tense:
First-person singular (I): -ía
Second-person singular (familiar you): -ías
Third-person singular (he, she, formal you): -ía
First-person plural (we): -íamos
Second-person plural (familiar you): -íais
Third-person plural (they, familiar you): -ían
As an example, here are the conjugated forms of vivir (to live) using the same pattern as is applied to all regular verbs.
yo viviría, I would live
tú vivirías, you (informal singular) would live
usted, él, ella viviría, you (formal singular), he, she would live
nosotros, nosotras viviríamos, we would live
vosotros, vosotras viviríais, you (informal plural) would live
ellos, ellas ustedes vivirían, they, you (plural formal) would live
You may notice that the endings attached to the infinitives are the same as the endings of haber in the imperfect, just as the endings attached to infinitives to make the future tense are the same as the endings of haber in the present tense.