can treble
Verbo regular: treble - trebled- trebled

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can treble
you can treble
he can treble
we can treble
you can treble
they can treble 	I can be trebling
you can be trebling
he can be trebling
we can be trebling
you can be trebling
they can be trebling	I can have trebled
you can have trebled
he can have trebled
we can have trebled
you can have trebled
they can have trebled	I can have been trebling
you can have been trebling
he can have been trebling
we can have been trebling
you can have been trebling
they can have been trebling	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can't treble
you can't treble
he can't treble
we can't treble
you can't treble
they can't treble 	I can't be trebling
you can't be trebling
he can't be trebling
we can't be trebling
you can't be trebling
they can't be trebling	I can't have trebled
you can't have trebled
he can't have trebled
we can't have trebled
you can't have trebled
they can't have trebled	I can't have been trebling
you can't have been trebling
he can't have been trebling
we can't have been trebling
you can't have been trebling
they can't have been trebling	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I treble?
can you treble?
can he treble?
can we treble?
can you treble?
can they treble? 	can I be trebling?
can you be trebling?
can he be trebling?
can we be trebling?
can you be trebling?
can they be trebling? 	can I have trebled?
can you have trebled?
can he have trebled?
can we have trebled?
can you have trebled?
can they have trebled? 	can I have been trebling?
can you have been trebling?
can he have been trebling?
can we have been trebling?
can you have been trebling?
can they have been trebling? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can't I treble?
can't you treble?
can't he treble?
can't we treble?
can't you treble?
can't they treble? 	can't I be trebling?
can't you be trebling?
can't he be trebling?
can't we be trebling?
can't you be trebling?
can't they be trebling? 	can't I have trebled?
can't you have trebled?
can't he have trebled?
can't we have trebled?
can't you have trebled?
can't they have trebled? 	can't I have been trebling?
can't you have been trebling?
can't he have been trebling?
can't we have been trebling?
can't you have been trebling?
can't they have been trebling?