English verb conjugation
COULD EVOKE

Regular verb: evoke - evoked - evoked

Affirmation

Simple form	V-ing form
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
Perfect	V-ing perfect
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
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
Perfect	V-ing perfect
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
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?
Perfect	V-ing perfect
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
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?
Perfect	V-ing perfect
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?