Warning, this verb may not exist. Conjugation is given as example.
Affirmation
Simple form
I can buy buy you can buy buy she can buy buy we can buy buy you can buy buy they can buy buy
V-ing form
I can be buy buying you can be buy buying she can be buy buying we can be buy buying you can be buy buying they can be buy buying
Perfect
I can have buy buyed you can have buy buyed she can have buy buyed we can have buy buyed you can have buy buyed they can have buy buyed
V-ing perfect
I can have been buy buying you can have been buy buying she can have been buy buying we can have been buy buying you can have been buy buying they can have been buy buying
Negation
Simple form
I cannot buy buy you cannot buy buy she cannot buy buy we cannot buy buy you cannot buy buy they cannot buy buy
V-ing form
I cannot be buy buying you cannot be buy buying she cannot be buy buying we cannot be buy buying you cannot be buy buying they cannot be buy buying
Perfect
I cannot have buy buyed you cannot have buy buyed she cannot have buy buyed we cannot have buy buyed you cannot have buy buyed they cannot have buy buyed
V-ing perfect
I cannot have been buy buying you cannot have been buy buying she cannot have been buy buying we cannot have been buy buying you cannot have been buy buying they cannot have been buy buying
Interrogative form
Simple form
can I buy buy? can you buy buy? can she buy buy? can we buy buy? can you buy buy? can they buy buy?
V-ing form
can I be buy buying? can you be buy buying? can she be buy buying? can we be buy buying? can you be buy buying? can they be buy buying?
Perfect
can I have buy buyed? can you have buy buyed? can she have buy buyed? can we have buy buyed? can you have buy buyed? can they have buy buyed?
V-ing perfect
can I have been buy buying? can you have been buy buying? can she have been buy buying? can we have been buy buying? can you have been buy buying? can they have been buy buying?
Interro-negative form
Simple form
can I not buy buy? can you not buy buy? can she not buy buy? can we not buy buy? can you not buy buy? can they not buy buy?
V-ing form
can I not be buy buying? can you not be buy buying? can she not be buy buying? can we not be buy buying? can you not be buy buying? can they not be buy buying?
Perfect
can I not have buy buyed? can you not have buy buyed? can she not have buy buyed? can we not have buy buyed? can you not have buy buyed? can they not have buy buyed?
V-ing perfect
can I not have been buy buying? can you not have been buy buying? can she not have been buy buying? can we not have been buy buying? can you not have been buy buying? can they not have been buy buying?