Irregular verbs (Present tense) Posted on 21/08/2013 by Juana Ruiz Mena Posted in A-1 Some irregular verbs change their stem in the present tense, indicative mode. They are different groups: – Stem-changing verbs: e to ie – Stem-changing verbs: o to ue – Stem-changing verbs: e to i – Stem-changing verbs: u to ue
