1) Turn on your brain
2) Get the "nous" form of the verb you want to use in the present tense.
3)Take off the "ons" part of the verb.
4) Add one of the imperfect endings.
5) Je: -ais Tu: -ais Il/elle/on: -ait Nous: -ions Vous: -iez Ils/elles: -aient
Smile, drink and laugh how you didn't use to be able to do something so easy.