Stem-changing Spanish c>z verbs in the present subjunctive)
In Spanish some verbs ending in -cer/-cir undergo a stem change in the present subjunctive, in a very similar way they do in the present indicative. They will switch the -c for a -z The difference is that while in the present indicative only the yo form is affected by this stem change, in the present subjunctive all forms keep the stem change.Have a look at these tables showing both the present indicative and the present subjunctive of convencer (to convince):
CONVENCER (present indicative) |
CONVENCER (present subjunctive) |
|
yo | convenzo | convenza |
tú | convences | convenzas |
él / ella / usted |
convence | convenza |
nosotros / nosotras | convencemos | convenzamos |
vosotros / vosotras | convencéis | convenzáis |
ellos / ellas/ ustedes | convencen | convenzan |