Double conjugation for the verb "saugen" and its compounds: 1) Regular: "ich sauge" / "ich saugte" / "gesaugt". 2) Irregular: there is a vowel change in the stem of Present tense ("ich sauge"), the stem of Preterite ("ich sog") and the stem of Past Participle ("gesogen").
14 verbs follow this model. Below an extract:
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Based on the ending, you can identify features that different verbs have in common. Click on the verbs above to see their conjugation tables and explore their conjugation patterns.