Presente
What is happening now, habits, general truths, and plans: domani parto.
- bisogna
Bisognare
to be necessary
Irregular verb, gerund bisognando.
Bisogna
Bisogna has no subject: bisogna partire, one has to leave; bisogna che tu parta, you have to leave.
Newbie
Enough to talk about now, your plans, and the past.
Imperfetto
Past habits, descriptions, and what was going on.
- bisognava