laufenläuftliefgelaufen

laufenläuftliefgelaufen is a German verb conjugation exercise that demonstrates the principal parts of the irregular verb "laufen" (to run). The sequence is comprised of the infinitive, the present tense third-person singular, the simple past third-person singular, and the past participle. This specific phrase is commonly used in German language learning to practice and memorize the distinct forms of this frequently encountered verb. Understanding these principal parts is crucial for constructing grammatically correct sentences in various tenses. "Laufen" is a common verb, and its irregular nature makes this particular conjugation sequence a standard learning tool for students of German. The progression from "laufen" to "läuft" to "lief" and finally "gelaufen" illustrates the verb's stem changes and prefix addition required for different grammatical contexts. Mastering such irregular conjugations is a fundamental step in achieving fluency in the German language.