Affirmative Tú Commands (En español, Unidad 4 Etapa 1) Tell your little brother to do each of the following things. Change each infinitive into the affirmative tú command. Example: bailar You write: baila Remember: the affirmative tú command looks just like the él/ella form of the present tense. Tools This activity was created by a Quia Web subscriber. To learn how to make your own, just like this, click here.