The Subjunctive Mood (Days 13-14):
You've likely heard native speakers say things like "Suffice to say, he wasn't happy", "Come what may" or "So be it". These phrases sound natural when you hear them, but very few learners realise they are built on the subjunctive mood.
Once you understand the pattern behind it, you can start constructing your own nuanced sentences to express wishes, demands and hypotheticals.