[Yuusuke]

A: 行かなかった- didn't go
B: 行けばよかった- went didn;t like?
C: 行けなかった- wasn't able to
D: 行くべきだった- didn't like?
E: 行ってよかった-went
F: 行きました-went
G: 行きたかったけど・・・- went but
H. 行った- went
I: 行かなければよかった-went
J: 行くつもりだったけど-intended on going
K: 行っとけばよかった- didn't like concert but went