Spanish Irregular Preterite Verb Practice Generator

Every regular Spanish verb builds its preterite from the infinitive stem plus a predictable set of endings. Ten common verbs break that pattern entirely and rebuild the stem itself, tuve, not tené, pude, not podí. Most textbooks mention this in passing without pointing out that these irregular stems cluster into a small number of families that behave the same way once the pattern is visible, rather than ten unrelated facts to hold in memory one at a time. This tool drills the irregular stem groups by family.

Stem group is [STEM_GROUP:select:U-stem group (tener, estar, poder, poner, saber),I-stem group (venir, hacer, querer),J-stem group (decir, traer),Ir and ser (identical irregular preterite form),Mixed across all irregular groups].

Specific verbs are [SPECIFIC_VERBS?] (name particular verbs within the group, or leave blank and the group's core verbs will get covered).

Sentence context is [SENTENCE_CONTEXT] (a topic or scenario for the example sentences, like "a trip that went wrong" or "what happened at work yesterday").

CEFR level is [CEFR_LEVEL:select:A2 (elementary),B1 (intermediate),B2 (upper intermediate)].

I need [ITEM_COUNT:number:10-30] sentences.

Show each irregular stem plainly next to its infinitive so the shift is visible: tener becomes tuv-, estar becomes estuv-, poder becomes pud-, poner becomes pus-, saber becomes sup-, venir becomes vin-, hacer becomes hic- in most forms and hiz- in the third person singular to keep the right sound before o, querer becomes quis-, and decir and traer both take a j in the stem, dije, traje.

For the j-stem group, apply the extra irregularity that drops the i from the usual ellos ending, dijeron and trajeron, not dijieron or trajieron, since that dropped letter is a second trap layered right on top of the stem change itself.

For ir and ser, note plainly that both verbs share the exact same irregular preterite form, fui, fuiste, fue, fuimos, fuisteis, fueron, and that only surrounding context tells a reader which verb is meant, since nothing in the form itself distinguishes them.

Match sentence complexity and vocabulary to [CEFR_LEVEL], and vary the subject pronoun across items so the same irregular stem gets practiced across more than one conjugated ending instead of repeating the yo form over and over.

Close by grouping the irregular stems used in this batch by shared pattern, not by verb meaning. Recognizing that tener, estar, poder, poner, and saber all take the same kind of stem shift is what makes the irregularity stick, instead of ten separate facts to memorize on their own.