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