The Dutch simple past (onvoltooid verleden tijd, or imperfect) is used primarily in written narrative, formal registers, and storytelling. In everyday speech, Dutch speakers overwhelmingly prefer the perfect tense — but in novels, news articles, and formal reports, the imperfect is the standard past tense. Regular verbs form the imperfect by adding -te/-ten (for stems ending in a ‘t kofschip’ consonant) or -de/-den (for all others) to the verb stem.
For example: werken → stem werk → imperfect ik werkte, wij werkten. Leven → stem leef → imperfect ik leefde, wij leefden. The singular and plural forms differ only in the -n ending for plural: ik werkte / wij werkten. The most important irregular verbs in the imperfect are zijn (ik was, wij waren) and hebben (ik had, wij hadden) — both appear constantly in narrative and must be memorized immediately.
Strong verbs (irregular verbs) form the imperfect by changing the vowel in their stem — there is no -te or -de ending. Rijden (to ride) → reed. Schrijven (to write) → schreef. Lopen (to walk) → liep. Zingen (to sing) → zong. These must be memorized individually, but the seven ablaut classes provide patterns that help group them systematically. Reading Dutch literature regularly is the best way to internalize the imperfect naturally.