Section 19.7 · U-stems: tuve · estuve · pude · I-stems: hice · vine · J-stem: dije · no accent marks · endings: -e · -o · -imos · -ieron/-eron
The six verbs in this section — tener, estar, poder, hacer, venir, decir — are among the most frequently used verbs in Spanish. Every professional conversation, medical report, and workplace narrative uses them constantly. They are irregular in the preterit, but they share a systematic pattern that makes them learnable as a group rather than as isolated memorizations.
The key insight: these verbs use a new, irregular stem combined with a shared set of endings that carry no accent marks. The endings are: yo -e, usted -o, nosotros -imos, ustedes -ieron (or -eron for the j-stem verb decir). Once you know the stem, you add the same endings to every verb in this group. Learning them as three families — U-stem, I-stem, and J-stem — is the fastest route to full command.
tener → tuv-
yo tuve / usted tuvo
nosotros tuvimos
ustedes tuvieron
estar → estuv-
yo estuve / usted estuvo
nosotros estuvimos
ustedes estuvieron
poder → pud-
yo pude / usted pudo
nosotros pudimos
ustedes pudieron
hacer → hic-
yo hice / usted hizo*
nosotros hicimos
ustedes hicieron
*c→z before -o (sound rule)
venir → vin-
yo vine / usted vino
nosotros vinimos
ustedes vinieron
decir → dij-
yo dije / usted dijo
nosotros dijimos
ustedes dijeron*
*-eron not -ieron after j
Essential for quoting speech.
El doctor dijo…
Yo dije la verdad.
| Verb | Stem | Yo | Tú | Usted | Nosotros | Ustedes |
|---|---|---|---|---|---|---|
| Tener U | tuv- | tuve | tuviste | tuvo | tuvimos | tuvieron |
| Estar U | estuv- | estuve | estuviste | estuvo | estuvimos | estuvieron |
| Poder U | pud- | pude | pudiste | pudo | pudimos | pudieron |
| Hacer I | hic- / hiz-* | hice | hiciste | hizo* | hicimos | hicieron |
| Venir I | vin- | vine | viniste | vino | vinimos | vinieron |
| Decir J | dij- | dije | dijiste | dijo | dijimos | dijeron* |
* Two special cases: Hizo (usted of hacer): c→z before -o to preserve the soft sound. Without the change, hico would sound like a hard k, inconsistent with hice. • Dijeron (ustedes of decir): j-stems drop the i from -ieron, giving -eron. This applies to all j-stem verbs.
| Verb | Stem | Yo | Tú | Usted | Professional Example | Audio |
|---|---|---|---|---|---|---|
| Tener | tuv- | tuve | tuviste | tuvo | El paciente tuvo fiebre anoche. | |
| Estar | estuv- | estuve | estuviste | estuvo | Yo estuve en la oficina a las ocho. | |
| Poder | pud- | pude | pudiste | pudo | Yo no pude llamar esta mañana. | |
| Hacer | hic-/hiz- | hice | hiciste | hizo | ¿Usted hizo la reservación? | |
| Venir | vin- | vine | viniste | vino | El técnico vino a reparar la máquina. | |
| Decir | dij- | dije | dijiste | dijo | Usted me dijo el nombre del paciente. |
The three U-stem verbs replace the original vowel of the verb root with u: ten- → tuv-, estar → estuv-, pod- → pud-. All three then take the same unaccented endings: yo -e, usted -o, nosotros -imos, ustedes -ieron. Tener is essential for reporting what someone had: El paciente tuvo fiebre · Yo tuve una reunión. Estar reports physical location or condition at a specific completed time: Yo estuve en la clínica · Usted estuvo enfermo el lunes. Poder reports ability or inability at a specific moment: Yo no pude llamar · Usted pudo terminar el trabajo. All three appear constantly in professional and medical oral reports.
The two I-stem verbs replace the original vowel with i: hacer → hic-, venir → vin-. They take the same shared endings. Hacer has one special note: the usted form is hizo, not hico. The reason is the same sound-preservation principle from Section 19.4: c before o would produce a hard k-sound inconsistent with the other forms. So c changes to z before -o: hizo. All other hacer forms keep c: hice, hicimos, hicieron. Hacer covers making and doing: Yo hice el pago · ¿Usted hizo la reservación? · Nosotros hicimos el informe. Venir reports arrivals: El técnico vino a reparar · Yo vine temprano · Ustedes vinieron ayer.
Decir (to say / to tell) uses the j-stem dij- and the same shared endings, with one difference: the ustedes ending is -eron, not -ieron. After a j-stem, the i of -ieron is dropped: dijeron (not *dijieron). The four forms are: dije · dijo · dijimos · dijeron. Decir is the essential verb for reporting speech — quoting what someone said is one of the most frequent activities in professional documentation. Yo dije la verdad · Usted me dijo el nombre · El doctor dijo que era urgente · Ellos dijeron que no. Mastering decir in the preterit means you can accurately report conversations, instructions, and statements in any professional context.
One of the most useful memory anchors for this entire group: none of the irregular-stem preterit forms carry a written accent mark. The yo ending is -e (not -é). The usted ending is -o (not -ó). Compare: hablé (regular yo, has accent) vs. hice (irregular yo, no accent). Habló (regular usted, has accent) vs. hizo (irregular usted, no accent). This absence of accent marks is the orthographic signature of this entire class of irregular verbs. When writing professional Spanish, if you are using an irregular stem, do not add accent marks. If you are using a regular stem, yo and usted forms require accents. This rule is consistent without exception.
In a single professional workday, all six verbs appear repeatedly. Tener: reporting what someone had — symptoms, meetings, documents, appointments. Estar: reporting where someone was — location and condition at a specific completed time. Poder: reporting what was or was not possible. Hacer: reporting tasks and actions completed. Venir: reporting arrivals and service visits. Decir: quoting speech — what the doctor said, what the patient reported, what was communicated. A full professional incident report uses all six: El paciente tuvo dolor · Estuvo en urgencias · No pudo caminar · El médico hizo el examen · El técnico vino a revisar · El doctor dijo que era urgente. This six-verb cluster is the backbone of professional preterit reporting in Spanish.
You have covered all seven sections of Chapter 19: regular endings · uses of the preterit · past time markers · spelling-change verbs · stem-changing -IR verbs · ser and ir · high-frequency irregular verbs. The complete preterit system is now yours. Chapter 20 introduces the imperfect tense — the partner tense that handles ongoing actions, habitual past, and the background descriptions that the preterit cannot cover.
Listen to each sentence, then repeat aloud during the countdown.
Sentences 1–6 drill the three U-stem verbs (tuv-, estuv-, pud-) across all subjects in professional and medical contexts. Sentences 7–12 drill the two I-stem verbs (hic-/hiz- and vin-), including the hizo spelling exception and the critical tú form hiciste (not hiziste). Sentences 13–17 drill the J-stem verb decir, including dijeron (not dijieron) for ustedes and dijiste for tú. Sentences 18–22 drill mixed-verb sentences combining two or more irregular verbs in single professional narratives. Sentences 23–25 drill full incident report chains using all six verbs. Sentences 26–28 drill tú forms specifically — tuviste, hiciste, dijiste — to confirm the two-step system applies to tú identically, with no accent and no c→z or -eron exceptions.
Step 1 — Name the stem family before speaking: Before each sentence, say the stem family: “U-stem,” “I-stem,” or “J-stem.” This activates the correct stem before you produce the full verb form, preventing the most common error of defaulting to the regular stem.
Step 2 — Notice the rhythm of unaccented endings: Irregular-stem yo and usted forms have a different stress pattern from regular verbs. Regular: habl-É (stress on final syllable). Irregular: HI-ce, TU-ve (stress on the stem). Listening for this rhythm trains you to distinguish irregular from regular forms instantly.
Step 3 — Produce the partner form: After each yo-form sentence, immediately say the usted form; after each usted form, say yo. Build the pairing: tuve ↔ tuvo · hice ↔ hizo · dije ↔ dijo. This toggle drill prevents accent-mark errors and stem confusion between paired forms.
The six-stem chain — 90-second daily drill: Say aloud each day: stems → tuv- · estuv- · pud- · hic- · vin- · dij-. Then yo forms → tuve · estuve · pude · hice · vine · dije. Then usted → tuvo · estuvo · pudo · hizo · vino · dijo. Then nosotros → tuvimos · estuvimos · pudimos · hicimos · vinimos · dijimos. This 90-second chain drills all six verbs across three subjects and permanently anchors stems and endings.
The professional incident report template: Memorize this unit and adapt to any situation: El paciente tuvo dolor. Estuvo en urgencias dos horas. No pudo caminar solo. El médico hizo el examen. El técnico vino a revisar. El doctor dijo que era urgente. Every sentence uses a different irregular verb. Practicing this template makes the six-verb system automatic.
The accent mark audit: When proofreading professional Spanish, scan preterit verbs: does the yo or usted form have an accent? Yes → regular verb (check intent). No accent → irregular stem (verify stem is correct). This eliminates the most common written error: adding incorrect accents like *hicé or *tuvó.
Choose the correct answer. 20 questions drawn randomly from a pool of 30.