can ask
Verbo regular: ask - asked- asked

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can ask
you can ask
he can ask
we can ask
you can ask
they can ask 	I can be asking
you can be asking
he can be asking
we can be asking
you can be asking
they can be asking	I can have asked
you can have asked
he can have asked
we can have asked
you can have asked
they can have asked	I can have been asking
you can have been asking
he can have been asking
we can have been asking
you can have been asking
they can have been asking	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can't ask
you can't ask
he can't ask
we can't ask
you can't ask
they can't ask 	I can't be asking
you can't be asking
he can't be asking
we can't be asking
you can't be asking
they can't be asking	I can't have asked
you can't have asked
he can't have asked
we can't have asked
you can't have asked
they can't have asked	I can't have been asking
you can't have been asking
he can't have been asking
we can't have been asking
you can't have been asking
they can't have been asking	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I ask?
can you ask?
can he ask?
can we ask?
can you ask?
can they ask? 	can I be asking?
can you be asking?
can he be asking?
can we be asking?
can you be asking?
can they be asking? 	can I have asked?
can you have asked?
can he have asked?
can we have asked?
can you have asked?
can they have asked? 	can I have been asking?
can you have been asking?
can he have been asking?
can we have been asking?
can you have been asking?
can they have been asking? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can't I ask?
can't you ask?
can't he ask?
can't we ask?
can't you ask?
can't they ask? 	can't I be asking?
can't you be asking?
can't he be asking?
can't we be asking?
can't you be asking?
can't they be asking? 	can't I have asked?
can't you have asked?
can't he have asked?
can't we have asked?
can't you have asked?
can't they have asked? 	can't I have been asking?
can't you have been asking?
can't he have been asking?
can't we have been asking?
can't you have been asking?
can't they have been asking?