Estructura 6.3: The regular preterite tense
Before we get into the nuts and bolts of conjugating in this new tense, we need to discuss what it can and cannot be used for.
What is the preterite used for, then?
In general:
Specifically, it is used for:
Conjugating in the regular preterite tense:
We'll begin with -AR verbs.
Like all conjugation we've seen thus far, the process is simple:
Our preterite endings for -AR verbs are:
Let's conjugate the -AR verb "cerrar" in the preterite tense.
Note that even though this verb has a stem change in the present tense, there is no stem change at all in the preterite:
tú form: cerraste
stem is "cerr"
conjugated ending is "aste"
3rd-person singular: cerró
stem is "cerr"
conjugated ending is "ó"
3rd person plural: cerraron
stem is "cerr"
conjugated ending is "aron"
yo form: cerré
stem is "cerr"
conjugated ending is "é"
nosotros form: cerramos
stem is "cerr"
conjugated ending is "amos"
Now let's work on -ER verbs and -IR verbs (but only -IR verbs that do not stem-change in the present tense)
Again, the process is simple:
Our preterite endings for -ER and -IR verbs are:
Let's conjugate the -ER verb "entender" in the preterite tense.
Note that even though this verb has a stem change in the present tense, there is no stem change at all in the preterite:
tú form: entendiste
stem is "entend"
conjugated ending is "iste"
3rd-person singular: entendió
stem is "entend"
conjugated ending is "ió"
3rd person plural: entendieron
stem is "entend"
conjugated ending is "ieron"
yo form: entendí
stem is "entend"
conjugated ending is "í"
nosotros form: entendimos
stem is "entend"
conjugated ending is "imos"
To end, let's conjugate the -IR verb "vivir" in the preterite tense.
tú form: viviste
stem is "viv"
conjugated ending is "iste"
3rd-person singular: vivió
stem is "viv"
conjugated ending is "ió"
3rd person plural: vivieron
stem is "viv"
conjugated ending is "ieron"
yo form: viví
stem is "viv"
conjugated ending is "í"
nosotros form: vivimos
stem is "viv"
conjugated ending is "imos"