Stem-changing Spanish i>y verbs in the present tense
Spanish verbs that end in -uir will switch the -i for a -y in all forms except for the nosotros and vosotros form. For example:huir (to escape) -> yo huyo, tú huyes, él/ella/usted huye, nosotros huimos, vosotros huis, ellos huyen.
Some other verbs affected by this specific consonant switch are:
destruir (to destroy)
construir (to build)
distribuir (to distribute)