
Irregular verb: forbid - forbid, forbade - forbid, forbidden
| Simple form | V-ing form | 
| I'd forbid you'd forbid he'd forbid we'd forbid you'd forbid they'd forbid | I'd be forbidding you'd be forbidding he'd be forbidding we'd be forbidding you'd be forbidding they'd be forbidding | 
| Perfect | V-ing perfect | 
| I should've forbid, forbidden you should've forbid, forbidden he should've forbid, forbidden we should've forbid, forbidden you should've forbid, forbidden they should've forbid, forbidden | I should've been forbidding you should've been forbidding he should've been forbidding we should've been forbidding you should've been forbidding they should've been forbidding | 
| Simple form | V-ing form | 
| I shouldn't forbid you shouldn't forbid he shouldn't forbid we shouldn't forbid you shouldn't forbid they shouldn't forbid | I shouldn't be forbidding you shouldn't be forbidding he shouldn't be forbidding we shouldn't be forbidding you shouldn't be forbidding they shouldn't be forbidding | 
| Perfect | V-ing perfect | 
| I shouldn't have forbid, forbidden you shouldn't have forbid, forbidden he shouldn't have forbid, forbidden we shouldn't have forbid, forbidden you shouldn't have forbid, forbidden they shouldn't have forbid, forbidden | I shouldn't have been forbidding you shouldn't have been forbidding he shouldn't have been forbidding we shouldn't have been forbidding you shouldn't have been forbidding they shouldn't have been forbidding | 
| Simple form | V-ing form | 
| should I forbid? should you forbid? should he forbid? should we forbid? should you forbid? should they forbid? | should I be forbidding? should you be forbidding? should he be forbidding? should we be forbidding? should you be forbidding? should they be forbidding? | 
| Perfect | V-ing perfect | 
| should I have forbid, forbidden? should you have forbid, forbidden? should he have forbid, forbidden? should we have forbid, forbidden? should you have forbid, forbidden? should they have forbid, forbidden? | should I have been forbidding? should you have been forbidding? should he have been forbidding? should we have been forbidding? should you have been forbidding? should they have been forbidding? | 
| Simple form | V-ing form | 
| shouldn't I forbid? shouldn't you forbid? shouldn't he forbid? shouldn't we forbid? shouldn't you forbid? shouldn't they forbid? | shouldn't I be forbidding? shouldn't you be forbidding? shouldn't he be forbidding? shouldn't we be forbidding? shouldn't you be forbidding? shouldn't they be forbidding? | 
| Perfect | V-ing perfect | 
| shouldn't I have forbid, forbidden? shouldn't you have forbid, forbidden? shouldn't he have forbid, forbidden? shouldn't we have forbid, forbidden? shouldn't you have forbid, forbidden? shouldn't they have forbid, forbidden? | shouldn't I have been forbidding? shouldn't you have been forbidding? shouldn't he have been forbidding? shouldn't we have been forbidding? shouldn't you have been forbidding? shouldn't they have been forbidding? |