_:nbad7bc1f1d6645198c00be50c5efd663xb0
<http://schema.org/description>
"All rights reserved Stem-changing -ir verbs, in the preterite only, have a stem change in the third-person singular and plural forms. The stem change consists of either e to i or o to u.."
<https://slideplayer.es/slide/302545/>