can glass
Verbo regular: glass - glassed- glassed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can glass
you can glass
he can glass
we can glass
you can glass
they can glass 	I can be glassing
you can be glassing
he can be glassing
we can be glassing
you can be glassing
they can be glassing	I can have glassed
you can have glassed
he can have glassed
we can have glassed
you can have glassed
they can have glassed	I can have been glassing
you can have been glassing
he can have been glassing
we can have been glassing
you can have been glassing
they can have been glassing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can't glass
you can't glass
he can't glass
we can't glass
you can't glass
they can't glass 	I can't be glassing
you can't be glassing
he can't be glassing
we can't be glassing
you can't be glassing
they can't be glassing	I can't have glassed
you can't have glassed
he can't have glassed
we can't have glassed
you can't have glassed
they can't have glassed	I can't have been glassing
you can't have been glassing
he can't have been glassing
we can't have been glassing
you can't have been glassing
they can't have been glassing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I glass?
can you glass?
can he glass?
can we glass?
can you glass?
can they glass? 	can I be glassing?
can you be glassing?
can he be glassing?
can we be glassing?
can you be glassing?
can they be glassing? 	can I have glassed?
can you have glassed?
can he have glassed?
can we have glassed?
can you have glassed?
can they have glassed? 	can I have been glassing?
can you have been glassing?
can he have been glassing?
can we have been glassing?
can you have been glassing?
can they have been glassing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can't I glass?
can't you glass?
can't he glass?
can't we glass?
can't you glass?
can't they glass? 	can't I be glassing?
can't you be glassing?
can't he be glassing?
can't we be glassing?
can't you be glassing?
can't they be glassing? 	can't I have glassed?
can't you have glassed?
can't he have glassed?
can't we have glassed?
can't you have glassed?
can't they have glassed? 	can't I have been glassing?
can't you have been glassing?
can't he have been glassing?
can't we have been glassing?
can't you have been glassing?
can't they have been glassing?