could reobserve
Verbe régulier : reobserve - reobserved- reobserved

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could reobserve
you could reobserve
he could reobserve
we could reobserve
you could reobserve
they could reobserve 	I could be reobserving
you could be reobserving
he could be reobserving
we could be reobserving
you could be reobserving
they could be reobserving	I could have reobserved
you could have reobserved
he could have reobserved
we could have reobserved
you could have reobserved
they could have reobserved	I could have been reobserving
you could have been reobserving
he could have been reobserving
we could have been reobserving
you could have been reobserving
they could have been reobserving	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could not reobserve
you could not reobserve
he could not reobserve
we could not reobserve
you could not reobserve
they could not reobserve 	I could not be reobserving
you could not be reobserving
he could not be reobserving
we could not be reobserving
you could not be reobserving
they could not be reobserving	I could not have reobserved
you could not have reobserved
he could not have reobserved
we could not have reobserved
you could not have reobserved
they could not have reobserved	I could not have been reobserving
you could not have been reobserving
he could not have been reobserving
we could not have been reobserving
you could not have been reobserving
they could not have been reobserving	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I reobserve?
could you reobserve?
could he reobserve?
could we reobserve?
could you reobserve?
could they reobserve? 	could I be reobserving?
could you be reobserving?
could he be reobserving?
could we be reobserving?
could you be reobserving?
could they be reobserving? 	could I have reobserved?
could you have reobserved?
could he have reobserved?
could we have reobserved?
could you have reobserved?
could they have reobserved? 	could I have been reobserving?
could you have been reobserving?
could he have been reobserving?
could we have been reobserving?
could you have been reobserving?
could they have been reobserving? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I not reobserve?
could you not reobserve?
could he not reobserve?
could we not reobserve?
could you not reobserve?
could they not reobserve? 	could I not be reobserving?
could you not be reobserving?
could he not be reobserving?
could we not be reobserving?
could you not be reobserving?
could they not be reobserving? 	could I not have reobserved?
could you not have reobserved?
could he not have reobserved?
could we not have reobserved?
could you not have reobserved?
could they not have reobserved? 	could I not have been reobserving?
could you not have been reobserving?
could he not have been reobserving?
could we not have been reobserving?
could you not have been reobserving?
could they not have been reobserving?