I'd be busying you'd be busying he'd be busying we'd be busying you'd be busying they'd be busying
Perfect
I should've busied you should've busied he should've busied we should've busied you should've busied they should've busied
V-ing perfect
I should've been busying you should've been busying he should've been busying we should've been busying you should've been busying they should've been busying
Negation
Simple form
I shouldn't busy you shouldn't busy he shouldn't busy we shouldn't busy you shouldn't busy they shouldn't busy
V-ing form
I shouldn't be busying you shouldn't be busying he shouldn't be busying we shouldn't be busying you shouldn't be busying they shouldn't be busying
Perfect
I shouldn't have busied you shouldn't have busied he shouldn't have busied we shouldn't have busied you shouldn't have busied they shouldn't have busied
V-ing perfect
I shouldn't have been busying you shouldn't have been busying he shouldn't have been busying we shouldn't have been busying you shouldn't have been busying they shouldn't have been busying
Interrogative form
Simple form
should I busy? should you busy? should he busy? should we busy? should you busy? should they busy?
V-ing form
should I be busying? should you be busying? should he be busying? should we be busying? should you be busying? should they be busying?
Perfect
should I have busied? should you have busied? should he have busied? should we have busied? should you have busied? should they have busied?
V-ing perfect
should I have been busying? should you have been busying? should he have been busying? should we have been busying? should you have been busying? should they have been busying?
Interro-negative form
Simple form
shouldn't I busy? shouldn't you busy? shouldn't he busy? shouldn't we busy? shouldn't you busy? shouldn't they busy?
V-ing form
shouldn't I be busying? shouldn't you be busying? shouldn't he be busying? shouldn't we be busying? shouldn't you be busying? shouldn't they be busying?
Perfect
shouldn't I have busied? shouldn't you have busied? shouldn't he have busied? shouldn't we have busied? shouldn't you have busied? shouldn't they have busied?
V-ing perfect
shouldn't I have been busying? shouldn't you have been busying? shouldn't he have been busying? shouldn't we have been busying? shouldn't you have been busying? shouldn't they have been busying?