English verb conjugation
COULD WOLF

Regular verb: wolf - wolfed - wolfed

Affirmation

Simple form	V-ing form
I could wolf you could wolf he could wolf we could wolf you could wolf they could wolf	I could be wolfing you could be wolfing he could be wolfing we could be wolfing you could be wolfing they could be wolfing
Perfect	V-ing perfect
I could have wolfed you could have wolfed he could have wolfed we could have wolfed you could have wolfed they could have wolfed	I could have been wolfing you could have been wolfing he could have been wolfing we could have been wolfing you could have been wolfing they could have been wolfing

Negation

Simple form	V-ing form
I couldn't wolf you couldn't wolf he couldn't wolf we couldn't wolf you couldn't wolf they couldn't wolf	I couldn't be wolfing you couldn't be wolfing he couldn't be wolfing we couldn't be wolfing you couldn't be wolfing they couldn't be wolfing
Perfect	V-ing perfect
I couldn't have wolfed you couldn't have wolfed he couldn't have wolfed we couldn't have wolfed you couldn't have wolfed they couldn't have wolfed	I couldn't have been wolfing you couldn't have been wolfing he couldn't have been wolfing we couldn't have been wolfing you couldn't have been wolfing they couldn't have been wolfing

Interrogative form

Simple form	V-ing form
could I wolf? could you wolf? could he wolf? could we wolf? could you wolf? could they wolf?	could I be wolfing? could you be wolfing? could he be wolfing? could we be wolfing? could you be wolfing? could they be wolfing?
Perfect	V-ing perfect
could I have wolfed? could you have wolfed? could he have wolfed? could we have wolfed? could you have wolfed? could they have wolfed?	could I have been wolfing? could you have been wolfing? could he have been wolfing? could we have been wolfing? could you have been wolfing? could they have been wolfing?

Interro-negative form

Simple form	V-ing form
couldn't I wolf? couldn't you wolf? couldn't he wolf? couldn't we wolf? couldn't you wolf? couldn't they wolf?	couldn't I be wolfing? couldn't you be wolfing? couldn't he be wolfing? couldn't we be wolfing? couldn't you be wolfing? couldn't they be wolfing?
Perfect	V-ing perfect
couldn't I have wolfed? couldn't you have wolfed? couldn't he have wolfed? couldn't we have wolfed? couldn't you have wolfed? couldn't they have wolfed?	couldn't I have been wolfing? couldn't you have been wolfing? couldn't he have been wolfing? couldn't we have been wolfing? couldn't you have been wolfing? couldn't they have been wolfing?