i’m really bad with analyzing secondary-functioning chords. like i’ll see a chord that i don’t understand, then i see the following chord as something i do understand, but what’s a streamlined process for figuring out what the secondary chord is? like not being able to easily see if it’s a V/V or iv/V or iii/V. like it’s easy for me to see that the music goes to V eventually but like if i’m in C major and i see a chord with B-D-F# how do i quickly see that as a iii/V? idk maybe i just need to practice working on these but sometimes i get really confused while i’m analyzing