11. Thus " stelan "'to steal'represents the strong verb conjugation paradigm. 12. Strong verbs had four principal parts, from which the remaining forms could be derived.13. Some originally weak verbs have taken on strong-type forms by analogy with strong verbs . 14. Thus we can reconstruct Common Germanic as having seven coherent classes of strong verbs . 15. Thus " stelan " " to steal " represents the strong verb conjugation paradigm. 16. However, there were some class 7 strong verbs that showed both ablaut and reduplication. 17. In Proto-Germanic, the system of strong verbs was largely regular. 18. Strong verbs are the second most numerous verb group.19. In the present tense, they originally conjugated like the past tense of a strong verb . 20. For some groups of strong verbs the plural also used another vowel than the singular.