Conjugación del verbo inglés
CAN BUY

Verbo irregular: buy - bought - bought

Afirmación

Forma simple	Forma con V-ing
I can buy you can buy she can buy we can buy you can buy they can buy	I can be buying you can be buying she can be buying we can be buying you can be buying they can be buying
Perfecto	Perfecto con V-ing
I can have bought you can have bought she can have bought we can have bought you can have bought they can have bought	I can have been buying you can have been buying she can have been buying we can have been buying you can have been buying they can have been buying

Negación

Forma simple	Forma con V-ing
I can't buy you can't buy she can't buy we can't buy you can't buy they can't buy	I can't be buying you can't be buying she can't be buying we can't be buying you can't be buying they can't be buying
Perfecto	Perfecto con V-ing
I can't have bought you can't have bought she can't have bought we can't have bought you can't have bought they can't have bought	I can't have been buying you can't have been buying she can't have been buying we can't have been buying you can't have been buying they can't have been buying

Forma interrogativa

Forma simple	Forma con V-ing
can I buy? can you buy? can she buy? can we buy? can you buy? can they buy?	can I be buying? can you be buying? can she be buying? can we be buying? can you be buying? can they be buying?
Perfecto	Perfecto con V-ing
can I have bought? can you have bought? can she have bought? can we have bought? can you have bought? can they have bought?	can I have been buying? can you have been buying? can she have been buying? can we have been buying? can you have been buying? can they have been buying?

Forma interro-negativa

Forma simple	Forma con V-ing
can't I buy? can't you buy? can't she buy? can't we buy? can't you buy? can't they buy?	can't I be buying? can't you be buying? can't she be buying? can't we be buying? can't you be buying? can't they be buying?
Perfecto	Perfecto con V-ing
can't I have bought? can't you have bought? can't she have bought? can't we have bought? can't you have bought? can't they have bought?	can't I have been buying? can't you have been buying? can't she have been buying? can't we have been buying? can't you have been buying? can't they have been buying?