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