could circumscribe
Verbo regular: circumscribe - circumscribed- circumscribed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could circumscribe
you could circumscribe
he could circumscribe
we could circumscribe
you could circumscribe
they could circumscribe 	I could be circumscribing
you could be circumscribing
he could be circumscribing
we could be circumscribing
you could be circumscribing
they could be circumscribing	I could have circumscribed
you could have circumscribed
he could have circumscribed
we could have circumscribed
you could have circumscribed
they could have circumscribed	I could have been circumscribing
you could have been circumscribing
he could have been circumscribing
we could have been circumscribing
you could have been circumscribing
they could have been circumscribing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not circumscribe
you could not circumscribe
he could not circumscribe
we could not circumscribe
you could not circumscribe
they could not circumscribe 	I could not be circumscribing
you could not be circumscribing
he could not be circumscribing
we could not be circumscribing
you could not be circumscribing
they could not be circumscribing	I could not have circumscribed
you could not have circumscribed
he could not have circumscribed
we could not have circumscribed
you could not have circumscribed
they could not have circumscribed	I could not have been circumscribing
you could not have been circumscribing
he could not have been circumscribing
we could not have been circumscribing
you could not have been circumscribing
they could not have been circumscribing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I circumscribe?
could you circumscribe?
could he circumscribe?
could we circumscribe?
could you circumscribe?
could they circumscribe? 	could I be circumscribing?
could you be circumscribing?
could he be circumscribing?
could we be circumscribing?
could you be circumscribing?
could they be circumscribing? 	could I have circumscribed?
could you have circumscribed?
could he have circumscribed?
could we have circumscribed?
could you have circumscribed?
could they have circumscribed? 	could I have been circumscribing?
could you have been circumscribing?
could he have been circumscribing?
could we have been circumscribing?
could you have been circumscribing?
could they have been circumscribing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not circumscribe?
could you not circumscribe?
could he not circumscribe?
could we not circumscribe?
could you not circumscribe?
could they not circumscribe? 	could I not be circumscribing?
could you not be circumscribing?
could he not be circumscribing?
could we not be circumscribing?
could you not be circumscribing?
could they not be circumscribing? 	could I not have circumscribed?
could you not have circumscribed?
could he not have circumscribed?
could we not have circumscribed?
could you not have circumscribed?
could they not have circumscribed? 	could I not have been circumscribing?
could you not have been circumscribing?
could he not have been circumscribing?
could we not have been circumscribing?
could you not have been circumscribing?
could they not have been circumscribing?