could evoke
Regular verb: evoke - evoked- evoked

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could evoke
you could evoke
he could evoke
we could evoke
you could evoke
they could evoke 	I could be evoking
you could be evoking
he could be evoking
we could be evoking
you could be evoking
they could be evoking	I could have evoked
you could have evoked
he could have evoked
we could have evoked
you could have evoked
they could have evoked	I could have been evoking
you could have been evoking
he could have been evoking
we could have been evoking
you could have been evoking
they could have been evoking	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't evoke
you couldn't evoke
he couldn't evoke
we couldn't evoke
you couldn't evoke
they couldn't evoke 	I couldn't be evoking
you couldn't be evoking
he couldn't be evoking
we couldn't be evoking
you couldn't be evoking
they couldn't be evoking	I couldn't have evoked
you couldn't have evoked
he couldn't have evoked
we couldn't have evoked
you couldn't have evoked
they couldn't have evoked	I couldn't have been evoking
you couldn't have been evoking
he couldn't have been evoking
we couldn't have been evoking
you couldn't have been evoking
they couldn't have been evoking	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I evoke?
could you evoke?
could he evoke?
could we evoke?
could you evoke?
could they evoke? 	could I be evoking?
could you be evoking?
could he be evoking?
could we be evoking?
could you be evoking?
could they be evoking? 	could I have evoked?
could you have evoked?
could he have evoked?
could we have evoked?
could you have evoked?
could they have evoked? 	could I have been evoking?
could you have been evoking?
could he have been evoking?
could we have been evoking?
could you have been evoking?
could they have been evoking? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I evoke?
couldn't you evoke?
couldn't he evoke?
couldn't we evoke?
couldn't you evoke?
couldn't they evoke? 	couldn't I be evoking?
couldn't you be evoking?
couldn't he be evoking?
couldn't we be evoking?
couldn't you be evoking?
couldn't they be evoking? 	couldn't I have evoked?
couldn't you have evoked?
couldn't he have evoked?
couldn't we have evoked?
couldn't you have evoked?
couldn't they have evoked? 	couldn't I have been evoking?
couldn't you have been evoking?
couldn't he have been evoking?
couldn't we have been evoking?
couldn't you have been evoking?
couldn't they have been evoking?