could stridulate
Verbo regolare: stridulate - stridulated- stridulated

Affermazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I could stridulate
you could stridulate
he could stridulate
we could stridulate
you could stridulate
they could stridulate 	I could be stridulating
you could be stridulating
he could be stridulating
we could be stridulating
you could be stridulating
they could be stridulating	I could have stridulated
you could have stridulated
he could have stridulated
we could have stridulated
you could have stridulated
they could have stridulated	I could have been stridulating
you could have been stridulating
he could have been stridulating
we could have been stridulating
you could have been stridulating
they could have been stridulating	

Negazione 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
I couldn't stridulate
you couldn't stridulate
he couldn't stridulate
we couldn't stridulate
you couldn't stridulate
they couldn't stridulate 	I couldn't be stridulating
you couldn't be stridulating
he couldn't be stridulating
we couldn't be stridulating
you couldn't be stridulating
they couldn't be stridulating	I couldn't have stridulated
you couldn't have stridulated
he couldn't have stridulated
we couldn't have stridulated
you couldn't have stridulated
they couldn't have stridulated	I couldn't have been stridulating
you couldn't have been stridulating
he couldn't have been stridulating
we couldn't have been stridulating
you couldn't have been stridulating
they couldn't have been stridulating	

Forma interrogativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
could I stridulate?
could you stridulate?
could he stridulate?
could we stridulate?
could you stridulate?
could they stridulate? 	could I be stridulating?
could you be stridulating?
could he be stridulating?
could we be stridulating?
could you be stridulating?
could they be stridulating? 	could I have stridulated?
could you have stridulated?
could he have stridulated?
could we have stridulated?
could you have stridulated?
could they have stridulated? 	could I have been stridulating?
could you have been stridulating?
could he have been stridulating?
could we have been stridulating?
could you have been stridulating?
could they have been stridulating? 	

Forma interro-negativa 	
Forma semplice 	Forma con V-ing 	Perfetto 	Perfetto con V-ing 	
couldn't I stridulate?
couldn't you stridulate?
couldn't he stridulate?
couldn't we stridulate?
couldn't you stridulate?
couldn't they stridulate? 	couldn't I be stridulating?
couldn't you be stridulating?
couldn't he be stridulating?
couldn't we be stridulating?
couldn't you be stridulating?
couldn't they be stridulating? 	couldn't I have stridulated?
couldn't you have stridulated?
couldn't he have stridulated?
couldn't we have stridulated?
couldn't you have stridulated?
couldn't they have stridulated? 	couldn't I have been stridulating?
couldn't you have been stridulating?
couldn't he have been stridulating?
couldn't we have been stridulating?
couldn't you have been stridulating?
couldn't they have been stridulating?