[MUSIC] There are some irregular verbs in the preterite. Let's take a look at them. There is a whole set of verbs in the preterite that have a different stem for the preterite forms and let's go over them. For instance the verb tener, for the preterite the stem is tuv. For estar, estuv, andar, anduv, poder, pud, venir, vin, hacer hic- poner, pus- decir, dij- querer, quis- saber, sup- traer, traj- conducir, conduj- and caber, cup-. Now to these stems, you're going to add the following endings. e,iste,o,imos,isteis,ieron. So let's look at the chart for these verbs. Let's take a verb like tener, which is tuv, so here are the endings that you add. Tuv-e, tuv-iste, tuv-o, tuv-imos, tuv-isteis, tuv-ieron. Let's take a verb like [FOREIGN] hic, hic-e, hic-iste [FOREIGN] Now note that the first and the third person endings are no longer stressed as was the case with the irregular preterite endings and there's no written accent. Also notice that with the verb hacer, the third person singular is hizo, and it has to be spelled with a z, not a c. Otherwise, you would lose the sound of [SOUND], hizo, and it would be hico, which is not correct. Let's look at some examples. [FOREIGN] I put on a jacket this morning because it was cold. Notice that puse is in the preterite and that [FOREIGN] is in the imperfect. [FOREIGN] I had a fright with the increase of the rent. [FOREIGN] We were very close to my school. [FOREIGN] He came late to the meeting. Hiciste la tarea para hoy? Have you done the homework for today. Now there is a who set of ir verbs that have stem changes in the present. But then they also have stem changes in the preterite. And where the o in the present tense goes to oa, in the preterite it goes to oo. And where the a in the present tense goes to yay, in the preterite it goes to ee. So let's look at this group of verbs. Dormir, pedir, [FOREIGN] So let's take durmio to sleep. Dormi dormiste durmio. There the o changes to u [FOREIGN] So these changes are only affecting the third person singular and plural. Let's take another verb in this group. [FOREIGN] To ask for. [FOREIGN] And another verb in this group, [FOREIGN] to feel. [FOREIGN] Finally, there's a group of verbs that have completely irregular forms. That includes ser, ir, and dar. So for the preterite for ser, fui, fuiste, fue, fuimos, fuisteis, fueron. And for ir, it's just the same. Fui, fuiste, fue, fuimos, fuiste, fueron. Context will tell you the difference. And for dar, d, diste. Dio, dimos, disteis, dieron. Now be advised, there are few superficial spelling changes for the preterite forms. That are just done to preserve the original sound of the verb. For instance, comenzar which is spelled with a Z, in the first person, has to be spelled with a C. Comence. LLegar which is spelled llegar in the first person has to be llegue spelled with gu the verb hacer we already talked about where the c has to switch to a z for hizo. And buscar in the first person it's busque spelled que. And finally tocar to touch or to place an instrument, toque spelled que.