CLC Stage 27 - Conjugating Imperfect Subjunctives Provide the imperfect subjunctive and translate into English. (You do NOT have to use macrons!) You form the imperfect subjunctive by taking the infinitive or second principal part and then adding personal endings. Tools Activity 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.