Grammar
Stem-changing Verbs
Four lessons on actual present patterns and their tense-specific contrasts.
Learning units
Available
Present: e → ie
Recognize pensar's present change without applying it to every tense.
3 practice cards · Saved review & resume
Start LessonAvailable
Present: o → ue and u → ue
See the stressed vowel in dormir and jugar, and keep spelling changes separate.
3 practice cards · Saved review & resume
Start LessonAvailable
Present: e → i
Recognize pedir's present pattern and its different preterite distribution.
3 practice cards · Saved review & resume
Start LessonAvailable
A pattern belongs to a tense
Compare present, preterite, imperfect and future without one global stem-change label.
3 practice cards · Saved review & resume
Start Lesson