could incur
Verbo regular: incur - incurred- incurred

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could incur
you could incur
he could incur
we could incur
you could incur
they could incur 	I could be incurring
you could be incurring
he could be incurring
we could be incurring
you could be incurring
they could be incurring	I could have incurred
you could have incurred
he could have incurred
we could have incurred
you could have incurred
they could have incurred	I could have been incurring
you could have been incurring
he could have been incurring
we could have been incurring
you could have been incurring
they could have been incurring	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't incur
you couldn't incur
he couldn't incur
we couldn't incur
you couldn't incur
they couldn't incur 	I couldn't be incurring
you couldn't be incurring
he couldn't be incurring
we couldn't be incurring
you couldn't be incurring
they couldn't be incurring	I couldn't have incurred
you couldn't have incurred
he couldn't have incurred
we couldn't have incurred
you couldn't have incurred
they couldn't have incurred	I couldn't have been incurring
you couldn't have been incurring
he couldn't have been incurring
we couldn't have been incurring
you couldn't have been incurring
they couldn't have been incurring	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I incur?
could you incur?
could he incur?
could we incur?
could you incur?
could they incur? 	could I be incurring?
could you be incurring?
could he be incurring?
could we be incurring?
could you be incurring?
could they be incurring? 	could I have incurred?
could you have incurred?
could he have incurred?
could we have incurred?
could you have incurred?
could they have incurred? 	could I have been incurring?
could you have been incurring?
could he have been incurring?
could we have been incurring?
could you have been incurring?
could they have been incurring? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I incur?
couldn't you incur?
couldn't he incur?
couldn't we incur?
couldn't you incur?
couldn't they incur? 	couldn't I be incurring?
couldn't you be incurring?
couldn't he be incurring?
couldn't we be incurring?
couldn't you be incurring?
couldn't they be incurring? 	couldn't I have incurred?
couldn't you have incurred?
couldn't he have incurred?
couldn't we have incurred?
couldn't you have incurred?
couldn't they have incurred? 	couldn't I have been incurring?
couldn't you have been incurring?
couldn't he have been incurring?
couldn't we have been incurring?
couldn't you have been incurring?
couldn't they have been incurring?