could chirr
Verbo regolare: chirr - chirred- chirred

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could chirr
you could chirr
he could chirr
we could chirr
you could chirr
they could chirr 	I could be chirring
you could be chirring
he could be chirring
we could be chirring
you could be chirring
they could be chirring	I could have chirred
you could have chirred
he could have chirred
we could have chirred
you could have chirred
they could have chirred	I could have been chirring
you could have been chirring
he could have been chirring
we could have been chirring
you could have been chirring
they could have been chirring	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I couldn't chirr
you couldn't chirr
he couldn't chirr
we couldn't chirr
you couldn't chirr
they couldn't chirr 	I couldn't be chirring
you couldn't be chirring
he couldn't be chirring
we couldn't be chirring
you couldn't be chirring
they couldn't be chirring	I couldn't have chirred
you couldn't have chirred
he couldn't have chirred
we couldn't have chirred
you couldn't have chirred
they couldn't have chirred	I couldn't have been chirring
you couldn't have been chirring
he couldn't have been chirring
we couldn't have been chirring
you couldn't have been chirring
they couldn't have been chirring	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I chirr?
could you chirr?
could he chirr?
could we chirr?
could you chirr?
could they chirr? 	could I be chirring?
could you be chirring?
could he be chirring?
could we be chirring?
could you be chirring?
could they be chirring? 	could I have chirred?
could you have chirred?
could he have chirred?
could we have chirred?
could you have chirred?
could they have chirred? 	could I have been chirring?
could you have been chirring?
could he have been chirring?
could we have been chirring?
could you have been chirring?
could they have been chirring? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
couldn't I chirr?
couldn't you chirr?
couldn't he chirr?
couldn't we chirr?
couldn't you chirr?
couldn't they chirr? 	couldn't I be chirring?
couldn't you be chirring?
couldn't he be chirring?
couldn't we be chirring?
couldn't you be chirring?
couldn't they be chirring? 	couldn't I have chirred?
couldn't you have chirred?
couldn't he have chirred?
couldn't we have chirred?
couldn't you have chirred?
couldn't they have chirred? 	couldn't I have been chirring?
couldn't you have been chirring?
couldn't he have been chirring?
couldn't we have been chirring?
couldn't you have been chirring?
couldn't they have been chirring?