3B1 expresses doubt in excess of the function, without a doubt expects it not to occur. 3B2 expresses uncertainty, it would or won't come about. 3B3 expects that it'll come about. I almost never see any in the four variants outlined in the original post. All four of such variations https://petskyonline-onlinestrore.blogspot.com/2025/07/top-10-aquarium-essentials-for-new-fish.html