<P> German verbs may be classified as either weak , with a dental consonant inflection , or strong , showing a vowel gradation ( ablaut ) . Both of these are regular systems . Most verbs of both types are regular , though various subgroups and anomalies do arise . The only completely irregular verb in the language is sein ( to be ) . although , textbooks for learners often class all strong verbs as irregular . There are more than 200 strong and irregular verbs , but there is a gradual tendency for strong verbs to become weak . </P>
how many strong verbs are there in german
more than 200