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