formal commands Unscramble the formal command based on the hint. Remember, opposite vowel changes, singular/plural agreement and irregulars such as -car changes to qu; -gar changes to gu; -zar chanbes to c; also, remember ser and ir are completely irregular. Tools Activity created by: Mia Williams This activity was created by a Quia Web subscriber. To learn how to make your own, just like this, click here.