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