
Regular verb: joke - joked - joked
Simple form | V-ing form | 
| I'd joke you'd joke he'd joke we'd joke you'd joke they'd joke  | I'd be joking you'd be joking he'd be joking we'd be joking you'd be joking they'd be joking  | 
Perfect | V-ing perfect | 
| I should've joked you should've joked he should've joked we should've joked you should've joked they should've joked  | I should've been joking you should've been joking he should've been joking we should've been joking you should've been joking they should've been joking  | 
Simple form | V-ing form | 
| I shouldn't joke you shouldn't joke he shouldn't joke we shouldn't joke you shouldn't joke they shouldn't joke  | I shouldn't be joking you shouldn't be joking he shouldn't be joking we shouldn't be joking you shouldn't be joking they shouldn't be joking  | 
Perfect | V-ing perfect | 
| I shouldn't have joked you shouldn't have joked he shouldn't have joked we shouldn't have joked you shouldn't have joked they shouldn't have joked  | I shouldn't have been joking you shouldn't have been joking he shouldn't have been joking we shouldn't have been joking you shouldn't have been joking they shouldn't have been joking  | 
Simple form | V-ing form | 
| should I joke? should you joke? should he joke? should we joke? should you joke? should they joke?  | should I be joking? should you be joking? should he be joking? should we be joking? should you be joking? should they be joking?  | 
Perfect | V-ing perfect | 
| should I have joked? should you have joked? should he have joked? should we have joked? should you have joked? should they have joked?  | should I have been joking? should you have been joking? should he have been joking? should we have been joking? should you have been joking? should they have been joking?  | 
Simple form | V-ing form | 
| shouldn't I joke? shouldn't you joke? shouldn't he joke? shouldn't we joke? shouldn't you joke? shouldn't they joke?  | shouldn't I be joking? shouldn't you be joking? shouldn't he be joking? shouldn't we be joking? shouldn't you be joking? shouldn't they be joking?  | 
Perfect | V-ing perfect | 
| shouldn't I have joked? shouldn't you have joked? shouldn't he have joked? shouldn't we have joked? shouldn't you have joked? shouldn't they have joked?  | shouldn't I have been joking? shouldn't you have been joking? shouldn't he have been joking? shouldn't we have been joking? shouldn't you have been joking? shouldn't they have been joking?  |