could prevision
Regular verb: prevision - previsioned- previsioned

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could prevision
you could prevision
he could prevision
we could prevision
you could prevision
they could prevision 	I could be previsioning
you could be previsioning
he could be previsioning
we could be previsioning
you could be previsioning
they could be previsioning	I could have previsioned
you could have previsioned
he could have previsioned
we could have previsioned
you could have previsioned
they could have previsioned	I could have been previsioning
you could have been previsioning
he could have been previsioning
we could have been previsioning
you could have been previsioning
they could have been previsioning	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't prevision
you couldn't prevision
he couldn't prevision
we couldn't prevision
you couldn't prevision
they couldn't prevision 	I couldn't be previsioning
you couldn't be previsioning
he couldn't be previsioning
we couldn't be previsioning
you couldn't be previsioning
they couldn't be previsioning	I couldn't have previsioned
you couldn't have previsioned
he couldn't have previsioned
we couldn't have previsioned
you couldn't have previsioned
they couldn't have previsioned	I couldn't have been previsioning
you couldn't have been previsioning
he couldn't have been previsioning
we couldn't have been previsioning
you couldn't have been previsioning
they couldn't have been previsioning	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I prevision?
could you prevision?
could he prevision?
could we prevision?
could you prevision?
could they prevision? 	could I be previsioning?
could you be previsioning?
could he be previsioning?
could we be previsioning?
could you be previsioning?
could they be previsioning? 	could I have previsioned?
could you have previsioned?
could he have previsioned?
could we have previsioned?
could you have previsioned?
could they have previsioned? 	could I have been previsioning?
could you have been previsioning?
could he have been previsioning?
could we have been previsioning?
could you have been previsioning?
could they have been previsioning? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I prevision?
couldn't you prevision?
couldn't he prevision?
couldn't we prevision?
couldn't you prevision?
couldn't they prevision? 	couldn't I be previsioning?
couldn't you be previsioning?
couldn't he be previsioning?
couldn't we be previsioning?
couldn't you be previsioning?
couldn't they be previsioning? 	couldn't I have previsioned?
couldn't you have previsioned?
couldn't he have previsioned?
couldn't we have previsioned?
couldn't you have previsioned?
couldn't they have previsioned? 	couldn't I have been previsioning?
couldn't you have been previsioning?
couldn't he have been previsioning?
couldn't we have been previsioning?
couldn't you have been previsioning?
couldn't they have been previsioning?