can chirr
Verbo regular: chirr - chirred- chirred

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can chirr
you can chirr
he can chirr
we can chirr
you can chirr
they can chirr 	I can be chirring
you can be chirring
he can be chirring
we can be chirring
you can be chirring
they can be chirring	I can have chirred
you can have chirred
he can have chirred
we can have chirred
you can have chirred
they can have chirred	I can have been chirring
you can have been chirring
he can have been chirring
we can have been chirring
you can have been chirring
they can have been chirring	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I can't chirr
you can't chirr
he can't chirr
we can't chirr
you can't chirr
they can't chirr 	I can't be chirring
you can't be chirring
he can't be chirring
we can't be chirring
you can't be chirring
they can't be chirring	I can't have chirred
you can't have chirred
he can't have chirred
we can't have chirred
you can't have chirred
they can't have chirred	I can't have been chirring
you can't have been chirring
he can't have been chirring
we can't have been chirring
you can't have been chirring
they can't have been chirring	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can I chirr?
can you chirr?
can he chirr?
can we chirr?
can you chirr?
can they chirr? 	can I be chirring?
can you be chirring?
can he be chirring?
can we be chirring?
can you be chirring?
can they be chirring? 	can I have chirred?
can you have chirred?
can he have chirred?
can we have chirred?
can you have chirred?
can they have chirred? 	can I have been chirring?
can you have been chirring?
can he have been chirring?
can we have been chirring?
can you have been chirring?
can they have been chirring? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
can't I chirr?
can't you chirr?
can't he chirr?
can't we chirr?
can't you chirr?
can't they chirr? 	can't I be chirring?
can't you be chirring?
can't he be chirring?
can't we be chirring?
can't you be chirring?
can't they be chirring? 	can't I have chirred?
can't you have chirred?
can't he have chirred?
can't we have chirred?
can't you have chirred?
can't they have chirred? 	can't I have been chirring?
can't you have been chirring?
can't he have been chirring?
can't we have been chirring?
can't you have been chirring?
can't they have been chirring?