I'd be drilling you'd be drilling she'd be drilling we'd be drilling you'd be drilling they'd be drilling
Perfect
I should've drilled you should've drilled she should've drilled we should've drilled you should've drilled they should've drilled
V-ing perfect
I should've been drilling you should've been drilling she should've been drilling we should've been drilling you should've been drilling they should've been drilling
Negation
Simple form
I shouldn't drill you shouldn't drill she shouldn't drill we shouldn't drill you shouldn't drill they shouldn't drill
V-ing form
I shouldn't be drilling you shouldn't be drilling she shouldn't be drilling we shouldn't be drilling you shouldn't be drilling they shouldn't be drilling
Perfect
I shouldn't have drilled you shouldn't have drilled she shouldn't have drilled we shouldn't have drilled you shouldn't have drilled they shouldn't have drilled
V-ing perfect
I shouldn't have been drilling you shouldn't have been drilling she shouldn't have been drilling we shouldn't have been drilling you shouldn't have been drilling they shouldn't have been drilling
Interrogative form
Simple form
should I drill? should you drill? should she drill? should we drill? should you drill? should they drill?
V-ing form
should I be drilling? should you be drilling? should she be drilling? should we be drilling? should you be drilling? should they be drilling?
Perfect
should I have drilled? should you have drilled? should she have drilled? should we have drilled? should you have drilled? should they have drilled?
V-ing perfect
should I have been drilling? should you have been drilling? should she have been drilling? should we have been drilling? should you have been drilling? should they have been drilling?
Interro-negative form
Simple form
shouldn't I drill? shouldn't you drill? shouldn't she drill? shouldn't we drill? shouldn't you drill? shouldn't they drill?
V-ing form
shouldn't I be drilling? shouldn't you be drilling? shouldn't she be drilling? shouldn't we be drilling? shouldn't you be drilling? shouldn't they be drilling?
Perfect
shouldn't I have drilled? shouldn't you have drilled? shouldn't she have drilled? shouldn't we have drilled? shouldn't you have drilled? shouldn't they have drilled?
V-ing perfect
shouldn't I have been drilling? shouldn't you have been drilling? shouldn't she have been drilling? shouldn't we have been drilling? shouldn't you have been drilling? shouldn't they have been drilling?