to collapse under the weight of a prefix or suffix). Verbs with a weak radical are termed weak verbs, and form partially regular exceptions to the normal conjugation rule. The consonants he, waw, and nun are among those likely to make a verb weak. Regularity The terms "weak" and "strong" rarely overlap with the idea of "regular" and "irregular"; some descriptions of English verbs contrast "weak" with "irregular", but this is misleading. It is true that most English or German weak verbs are regular, whereas Germanic strong verbs, despite the regularity of the system, are normally taught as irregular verbs; but there are also irregular weak verbs in English and German, and in Hebrew the weak verbs are the most irregular ones. In the case of the German noun, the strong noun is the norm, while the weak noun is usually taught as the anomalous form, though in fact it has its own regularity. In the German adjective, both systems are equally regular and equally common. See also Strong inflection External links Wiktionary appendix: Irregular English verbs, for information on which English verbs belong to the various classes of strong and irregular weak verb. Linguistic morphology Verb types Germanic languages