Hello, I’d like to make a suggestion, in the grammar point " ば if… then" you keep using the negative form, but without even introducing it. Like for example " でなければ" from the verb [である] in this sentence:
そのコーヒーを好すき でなければ 、この飲のみ物ものも絶対ぜったい好すきじゃないでしょう。[である]
If you do not like this coffee, then you most certainly will not like this drink.
BUT, I still haven’t figured out exactly how we got that form from the verb である. I’d very much appreciate, if you at least put one example in the grammar point page, not only throw it in the sentence examples. (Sorry for babbling, I still enjoy Bunpro, but sometimes I get confused by some grammar points 
)
Thank you very much!
