English verb conjugation
COULD EFFECT

Regular verb: effect - effected - effected

Affirmation

Simple form	V-ing form
I could effect you could effect he could effect we could effect you could effect they could effect	I could be effecting you could be effecting he could be effecting we could be effecting you could be effecting they could be effecting
Perfect	V-ing perfect
I could have effected you could have effected he could have effected we could have effected you could have effected they could have effected	I could have been effecting you could have been effecting he could have been effecting we could have been effecting you could have been effecting they could have been effecting

Negation

Simple form	V-ing form
I couldn't effect you couldn't effect he couldn't effect we couldn't effect you couldn't effect they couldn't effect	I couldn't be effecting you couldn't be effecting he couldn't be effecting we couldn't be effecting you couldn't be effecting they couldn't be effecting
Perfect	V-ing perfect
I couldn't have effected you couldn't have effected he couldn't have effected we couldn't have effected you couldn't have effected they couldn't have effected	I couldn't have been effecting you couldn't have been effecting he couldn't have been effecting we couldn't have been effecting you couldn't have been effecting they couldn't have been effecting

Interrogative form

Simple form	V-ing form
could I effect? could you effect? could he effect? could we effect? could you effect? could they effect?	could I be effecting? could you be effecting? could he be effecting? could we be effecting? could you be effecting? could they be effecting?
Perfect	V-ing perfect
could I have effected? could you have effected? could he have effected? could we have effected? could you have effected? could they have effected?	could I have been effecting? could you have been effecting? could he have been effecting? could we have been effecting? could you have been effecting? could they have been effecting?

Interro-negative form

Simple form	V-ing form
couldn't I effect? couldn't you effect? couldn't he effect? couldn't we effect? couldn't you effect? couldn't they effect?	couldn't I be effecting? couldn't you be effecting? couldn't he be effecting? couldn't we be effecting? couldn't you be effecting? couldn't they be effecting?
Perfect	V-ing perfect
couldn't I have effected? couldn't you have effected? couldn't he have effected? couldn't we have effected? couldn't you have effected? couldn't they have effected?	couldn't I have been effecting? couldn't you have been effecting? couldn't he have been effecting? couldn't we have been effecting? couldn't you have been effecting? couldn't they have been effecting?