Stem-changing Spanish z>c verbs in the present subjunctive
Spanish verbs that end in -zar switch the -z for a -c in all forms in the present subjunctive. Like most stem-changing verbs, this is to preserve the pronounciation from the infinitive.For example:
alcanzar (to reach)
yo alcance
tú alcances
él alcance
nosotros alcancemos
vosotros alcancéis
ellos alcancen
yo alcance
tú alcances
él alcance
nosotros alcancemos
vosotros alcancéis
ellos alcancen