English verb conjugation
COULD SKUNK

Regular verb: skunk - skunked - skunked

Affirmation

Simple form	V-ing form
I could skunk you could skunk he could skunk we could skunk you could skunk they could skunk	I could be skunking you could be skunking he could be skunking we could be skunking you could be skunking they could be skunking
Perfect	V-ing perfect
I could have skunked you could have skunked he could have skunked we could have skunked you could have skunked they could have skunked	I could have been skunking you could have been skunking he could have been skunking we could have been skunking you could have been skunking they could have been skunking

Negation

Simple form	V-ing form
I couldn't skunk you couldn't skunk he couldn't skunk we couldn't skunk you couldn't skunk they couldn't skunk	I couldn't be skunking you couldn't be skunking he couldn't be skunking we couldn't be skunking you couldn't be skunking they couldn't be skunking
Perfect	V-ing perfect
I couldn't have skunked you couldn't have skunked he couldn't have skunked we couldn't have skunked you couldn't have skunked they couldn't have skunked	I couldn't have been skunking you couldn't have been skunking he couldn't have been skunking we couldn't have been skunking you couldn't have been skunking they couldn't have been skunking

Interrogative form

Simple form	V-ing form
could I skunk? could you skunk? could he skunk? could we skunk? could you skunk? could they skunk?	could I be skunking? could you be skunking? could he be skunking? could we be skunking? could you be skunking? could they be skunking?
Perfect	V-ing perfect
could I have skunked? could you have skunked? could he have skunked? could we have skunked? could you have skunked? could they have skunked?	could I have been skunking? could you have been skunking? could he have been skunking? could we have been skunking? could you have been skunking? could they have been skunking?

Interro-negative form

Simple form	V-ing form
couldn't I skunk? couldn't you skunk? couldn't he skunk? couldn't we skunk? couldn't you skunk? couldn't they skunk?	couldn't I be skunking? couldn't you be skunking? couldn't he be skunking? couldn't we be skunking? couldn't you be skunking? couldn't they be skunking?
Perfect	V-ing perfect
couldn't I have skunked? couldn't you have skunked? couldn't he have skunked? couldn't we have skunked? couldn't you have skunked? couldn't they have skunked?	couldn't I have been skunking? couldn't you have been skunking? couldn't he have been skunking? couldn't we have been skunking? couldn't you have been skunking? couldn't they have been skunking?