Section 20.5 · venir → vin- (I-stem) · decir → dij- (J-stem) · J-stem rule: dijeron not *dijieron · no accent marks
In this section we cover two verbs that are indispensable for professional reporting: venir (to come) and decir (to say/tell). In any professional setting you must be able to say when someone arrived at a location and exactly what someone said. These verbs use different irregular stems — venir uses an I-stem (vin-) and decir uses a J-stem (dij-) — and like the U-stem verbs from Section 20.4, none of their forms carry written accent marks.
The J-stem introduces one additional rule that is critical to master: when the stem ends in j, the ustedes ending drops its i and becomes -eron instead of -ieron. This gives dijeron (not *dijieron). The same rule applies to all other J-stem verbs in Spanish, including traer (trajeron). Mastering these two verbs plus the J-stem rule completes the core irregular preterit system.
The rule: When a preterit stem ends in j, the ustedes ending is -eron, not -ieron. The i is dropped. This applies to all J-stem verbs: decir → dijeron · traer → trajeron. Tú is NOT affected: the tú ending is -iste (not -ieron), so no i-drop occurs. Dijiste (tú) is correct — dij- + -iste = dijiste, exactly as expected. The yo, tú, usted, and nosotros forms all follow the regular ending pattern (-e, -iste, -o, -imos).
| Verb | Stem | Type | Yo | Tú | Usted | Nosotros | Ustedes |
|---|---|---|---|---|---|---|---|
| Venir | vin- | I-stem | vine | viniste | vino | vinimos | vinieron |
| Decir | dij- | J-stem | dije | dijiste | dijo | dijimos | dijeron -eron |
| Traer | traj- | J-stem | traje | trajiste | trajo | trajimos | trajeron -eron |
| Hacer | hic- | I-stem | hice | hiciste | hizo* | hicimos | hicieron |
*Hizo: hacer usted uses z instead of c (c→z before -o). | All J-stem verbs use -eron in the ustedes form (never -ieron). | Tú always uses -iste: viniste · dijiste · trajiste · hiciste — the J-stem -eron rule does not affect tú. | No accent marks on any form.
| Verb | Stem | Tú Form | Usted Form | Ustedes Form | Professional Example | Audio |
|---|---|---|---|---|---|---|
| Venir | vin- | viniste | vino | vinieron | El técnico vino a las nueve para reparar la máquina. | |
| Decir | dij- | dijiste | dijo | dijeron -eron | El doctor dijo que los resultados son positivos. | |
| Hacer | hic- | hiciste | hizo | hicieron | Usted hizo un gran trabajo en el proyecto. | |
| Traer | traj- | trajiste | trajo | trajeron -eron | El mensajero trajo los documentos firmados. |
In the preterit, venir (to come) uses the I-stem vin- with the same shared endings as U-stem verbs: -e, -o, -imos, -ieron. It is the standard verb for reporting arrivals: when a client arrived, when a technician showed up, when a patient came in, when staff arrived for a shift. El técnico vino a las nueve (The technician came at nine). Yo vine a la oficina temprano (I came to the office early). Nosotros vinimos juntos en el mismo vuelo (We came together on the same flight). Ustedes vinieron antes de la hora (You all came before time). No accent marks on any form.
In the preterit, decir (to say / tell) uses the J-stem dij-. It is perhaps the most important verb for professional reporting: quoting what someone said, confirming that information was delivered, documenting instructions. El doctor dijo que los resultados son positivos (The doctor said the results are positive). Yo dije la verdad sobre el incidente (I told the truth about the incident). Nosotros dijimos que el servicio estaría listo (We said the service would be ready). Los clientes dijeron que el servicio fue excelente (The clients said the service was excellent — note: dijeron not *dijieron). Decir with an indirect object pronoun is especially powerful: me dijo (told me), le dije (I told him/her), nos dijeron (they told us).
The single most important rule specific to J-stem verbs is the ustedes ending. When a preterit stem ends in j, the ustedes ending is -eron, not -ieron. The i is dropped because the combination j+i in this position is phonologically awkward and violates a Spanish sound pattern. Decir: ustedes dijeron (not *dijieron). Traer: ustedes trajeron (not *trajieron). The yo, usted, and nosotros forms follow the regular pattern (-e, -o, -imos) exactly like U-stem verbs — only the ustedes form is different. The J-stem rule applies to all J-stem verbs in Spanish, making it a reliable, consistent rule rather than a one-off exception.
Like all irregular-stem preterit verbs, I-stem and J-stem forms carry no written accent marks. The yo ending is -e (not -é): vine, dije. The usted ending is -o (not -ó): vino, dijo. Writing *viné, *dijó, *vinó is always incorrect. This no-accent rule now applies to all the irregular-stem families covered in Chapter 20: hacer (hice/hizo), U-stem (tuve/tuvo, estuve/estuvo, pude/pudo), I-stem (vine/vino), and J-stem (dije/dijo). The rule is a single, consistent principle: irregular stem = no accent marks. Regular verbs (hablé, habló) have accents; irregular-stem verbs do not.
In professional and clinical reporting, venir and decir are two of the highest-frequency irregular verbs. Venir covers all arrival reporting: ¿A qué hora vino el paciente? · El técnico vino a reparar · Nosotros vinimos al turno a tiempo. Decir covers all quoted speech: El médico dijo que… · El paciente dijo que siente dolor · Usted me dijo la fecha equivocada · Los clientes dijeron que el servicio fue excelente. Together with the U-stem trio (tener/estar/poder) from Section 20.4, these five verbs cover the core of professional past-tense Spanish. A full incident report template: El paciente vino a las [hora]. Dijo que [síntoma]. Tuvo [condición]. Estuvo en [lugar]. No pudo [acción].
Listen to each sentence, then repeat aloud during the countdown.
Sentences 1–8 drill venir (vine / viniste / vino / vinimos / vinieron) across all subjects including tú. Sentences 9–15 drill decir (dije / dijiste / dijo / dijimos / dijeron) in quoted-speech contexts, with viniste and dijiste appearing alongside the other forms. Sentences 16–19 focus on the J-stem -eron rule (dijeron/trajeron, ustedes only). Sentences 20–25 combine venir, decir, and the U-stem trio in full professional narratives. Sentences 26–28 drill tú forms specifically — viniste and dijiste — confirming that the J-stem -eron rule does NOT apply to tú (-iste is always intact).
Step 1 — Name the stem and type: Before each sentence say: “vin- I-stem” or “dij- J-stem.” For decir ustedes forms, also say: “drop the i → dijeron.” This pre-production labeling builds the automatic stem-type awareness that prevents the *dijieron error.
Step 2 — Toggle yo ↔ usted: After each sentence, produce the contrasting form: vine ↔ vino · dije ↔ dijo. Confirm neither form has an accent. This yo/usted toggle simultaneously drills the stems, the endings, and the no-accent rule.
Step 3 — Build the report chain: For the final sentences, work toward the full five-verb chain: vino · dijo que · tuvo · estuvo · pudo/no pudo. This is the professional target — a complete past-tense clinical or workplace report in one connected sequence.
The J-stem firewall — daily check: Every time you write a form of decir or traer in ustedes/ellos, immediately ask: “Does my stem end in j? Yes → use -eron, delete the i.” Dijeron (7 letters) ≠ *dijieron (8 letters). The shorter form is always correct after j.
The no-accent check for all Chapter 20 verbs: Run through all six yo forms learned in Chapter 20: vine · dije · hice · tuve · estuve · pude. None has an accent. If you have written an accent on any of these, erase it. This 10-second review prevents the most common written error in the entire chapter.
The five-verb report — daily production drill: Each day, produce one incident report using all five verbs: choose a subject (patient / client / technician), fill in the template: [Subject] vino a [hora]. Dijo que [symptom/issue]. Tuvo [condition]. Estuvo en [place] durante [time]. [No] pudo [action]. After one week, this sequence is automatic.
Choose the correct answer. 20 questions drawn randomly from a pool of 30.