Latin 1B: Stage 14 - Infinitives and Imperatives Infinitives are the TO DO form of the verb, the 2nd principal part. They end in -re. Imperatives in the singular are made by dropping the -re from the infinitive. Imperatives in the plural end with -te. Tools Quiz created by: Ginny Lindzey This activity was created by a Quia Web subscriber. To learn how to make your own, just like this, click here.