could convoke
Regular verb: convoke - convoked- convoked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could convoke
you could convoke
he could convoke
we could convoke
you could convoke
they could convoke 	I could be convoking
you could be convoking
he could be convoking
we could be convoking
you could be convoking
they could be convoking	I could have convoked
you could have convoked
he could have convoked
we could have convoked
you could have convoked
they could have convoked	I could have been convoking
you could have been convoking
he could have been convoking
we could have been convoking
you could have been convoking
they could have been convoking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't convoke
you couldn't convoke
he couldn't convoke
we couldn't convoke
you couldn't convoke
they couldn't convoke 	I couldn't be convoking
you couldn't be convoking
he couldn't be convoking
we couldn't be convoking
you couldn't be convoking
they couldn't be convoking	I couldn't have convoked
you couldn't have convoked
he couldn't have convoked
we couldn't have convoked
you couldn't have convoked
they couldn't have convoked	I couldn't have been convoking
you couldn't have been convoking
he couldn't have been convoking
we couldn't have been convoking
you couldn't have been convoking
they couldn't have been convoking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I convoke?
could you convoke?
could he convoke?
could we convoke?
could you convoke?
could they convoke? 	could I be convoking?
could you be convoking?
could he be convoking?
could we be convoking?
could you be convoking?
could they be convoking? 	could I have convoked?
could you have convoked?
could he have convoked?
could we have convoked?
could you have convoked?
could they have convoked? 	could I have been convoking?
could you have been convoking?
could he have been convoking?
could we have been convoking?
could you have been convoking?
could they have been convoking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I convoke?
couldn't you convoke?
couldn't he convoke?
couldn't we convoke?
couldn't you convoke?
couldn't they convoke? 	couldn't I be convoking?
couldn't you be convoking?
couldn't he be convoking?
couldn't we be convoking?
couldn't you be convoking?
couldn't they be convoking? 	couldn't I have convoked?
couldn't you have convoked?
couldn't he have convoked?
couldn't we have convoked?
couldn't you have convoked?
couldn't they have convoked? 	couldn't I have been convoking?
couldn't you have been convoking?
couldn't he have been convoking?
couldn't we have been convoking?
couldn't you have been convoking?
couldn't they have been convoking?