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