CLC STAGE 19 Case Form Review--PUER Practice case form review in specific English model sentences. Replace the given English word with the correct form of the 2nd declension noun PUER in each of the model sentences. Activity created by: somebody else LONG vowels affecting an answer are CAPITALIZED, not marked by macrons. Tools This activity was created by a Quia Web subscriber. To learn how to make your own, just like this, click here.