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