3B1 expresses doubt more than the function, in fact expects it not to occur. 3B2 expresses uncertainty, it'd or won't occur. 3B3 expects that it'll materialize. Stack Trade network is made of 183 Q&A communities together with Stack Overflow, the biggest, most trustworthy online community for developers to find out, https://mariahq654xly9.scrappingwiki.com/user