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