1) wanna = want to = 想要，想做 　　I wanna go on vacation! 　　I don't wanna study! 　　You wanna call me back later? 　　2) gunna / gonna = going to = 会做 　　What's gunna happen!? 　　You're gunna freeze to death if you don't put a hat on! 　　Are you gunna go to Melissa's party? 　　3) coulda = could have = 会有 　　I coulda, but I didn't。 　　I thought I coulda gone to the concert. But I had to stay home and study。 　　Don't worry about what coulda been! Focus on the future! 　　4) woulda ＝ would have ＝ 将会 　　I woulda, but I didn't。 　　I woulda said yes to going on a date with Bob, but my parents woulda killed me! They think I need to focus on my studies。 　　5) shoulda ＝ should have = 应会，该有 　　I shoulda, but I didn't。 　　I shoulda said "yes!" I wanna go on a date with Bob!