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