
Regular verb: behave - behaved - behaved
Simple form | V-ing form | 
| I'd behave you'd behave she'd behave we'd behave you'd behave they'd behave  | I'd be behaving you'd be behaving she'd be behaving we'd be behaving you'd be behaving they'd be behaving  | 
Perfect | V-ing perfect | 
| I should've behaved you should've behaved she should've behaved we should've behaved you should've behaved they should've behaved  | I should've been behaving you should've been behaving she should've been behaving we should've been behaving you should've been behaving they should've been behaving  | 
Simple form | V-ing form | 
| I shouldn't behave you shouldn't behave she shouldn't behave we shouldn't behave you shouldn't behave they shouldn't behave  | I shouldn't be behaving you shouldn't be behaving she shouldn't be behaving we shouldn't be behaving you shouldn't be behaving they shouldn't be behaving  | 
Perfect | V-ing perfect | 
| I shouldn't have behaved you shouldn't have behaved she shouldn't have behaved we shouldn't have behaved you shouldn't have behaved they shouldn't have behaved  | I shouldn't have been behaving you shouldn't have been behaving she shouldn't have been behaving we shouldn't have been behaving you shouldn't have been behaving they shouldn't have been behaving  | 
Simple form | V-ing form | 
| should I behave? should you behave? should she behave? should we behave? should you behave? should they behave?  | should I be behaving? should you be behaving? should she be behaving? should we be behaving? should you be behaving? should they be behaving?  | 
Perfect | V-ing perfect | 
| should I have behaved? should you have behaved? should she have behaved? should we have behaved? should you have behaved? should they have behaved?  | should I have been behaving? should you have been behaving? should she have been behaving? should we have been behaving? should you have been behaving? should they have been behaving?  | 
Simple form | V-ing form | 
| shouldn't I behave? shouldn't you behave? shouldn't she behave? shouldn't we behave? shouldn't you behave? shouldn't they behave?  | shouldn't I be behaving? shouldn't you be behaving? shouldn't she be behaving? shouldn't we be behaving? shouldn't you be behaving? shouldn't they be behaving?  | 
Perfect | V-ing perfect | 
| shouldn't I have behaved? shouldn't you have behaved? shouldn't she have behaved? shouldn't we have behaved? shouldn't you have behaved? shouldn't they have behaved?  | shouldn't I have been behaving? shouldn't you have been behaving? shouldn't she have been behaving? shouldn't we have been behaving? shouldn't you have been behaving? shouldn't they have been behaving?  |