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