One of the most regular problems in learning a foreign language is the conujugation patterns of verbs- not the regular (or ´weak´ verbs), but tge irregular (or ´strong´). Verb conjugation is easy in English, so the problem is especially acute for native English-speakers. For the learner of German this program presents a list of 150 of the most commonly used. The list excludes any separable verbs, or prefixed verbs, as they almost invariably follow the pattern of the root verb. Thus erfinden conjugates just as finden, vorkommen as kommen, anrufen as rufen and so on.