Consonant Base Verbs

There are three kinds of irregular verbs ending in consonant. We'll use the Dictionary Form as the base form.

1. ㄷ~ ㄹ verbs
   Verbs ending in ㄷ change to ㄹ before endings that begin with a vowel:
                                                  듣다 --> 들어
    
2. ㅂ ~ ㅜ verbs
   Verbs that end in ㅂ lose the consonant and gain add a ㅜ to the ending before endings that begin with a vowel:
                                                  덥다 --> 더워
    
3. ㅅ irregular verbs
   Verbs that end in ㅅ drop the ㅅ before enfings that begin with a vowel:
                                                  낫다 --> 나아
   These are different form regular verbs in ㅅ which keep the ㅅ in all forms.
    
4. ㄹ irregular verbs
   Some verbs that end in ㄹ for the dictionary form drop the ㄹ for other verb endings. It must be learned by heart wether it stays or is dropped.