English verb conjugation
COULD STONEWALL

Regular verb: stonewall - stonewalled - stonewalled

Affirmation

Simple form	V-ing form
I could stonewall you could stonewall he could stonewall we could stonewall you could stonewall they could stonewall	I could be stonewalling you could be stonewalling he could be stonewalling we could be stonewalling you could be stonewalling they could be stonewalling
Perfect	V-ing perfect
I could have stonewalled you could have stonewalled he could have stonewalled we could have stonewalled you could have stonewalled they could have stonewalled	I could have been stonewalling you could have been stonewalling he could have been stonewalling we could have been stonewalling you could have been stonewalling they could have been stonewalling

Negation

Simple form	V-ing form
I couldn't stonewall you couldn't stonewall he couldn't stonewall we couldn't stonewall you couldn't stonewall they couldn't stonewall	I couldn't be stonewalling you couldn't be stonewalling he couldn't be stonewalling we couldn't be stonewalling you couldn't be stonewalling they couldn't be stonewalling
Perfect	V-ing perfect
I couldn't have stonewalled you couldn't have stonewalled he couldn't have stonewalled we couldn't have stonewalled you couldn't have stonewalled they couldn't have stonewalled	I couldn't have been stonewalling you couldn't have been stonewalling he couldn't have been stonewalling we couldn't have been stonewalling you couldn't have been stonewalling they couldn't have been stonewalling

Interrogative form

Simple form	V-ing form
could I stonewall? could you stonewall? could he stonewall? could we stonewall? could you stonewall? could they stonewall?	could I be stonewalling? could you be stonewalling? could he be stonewalling? could we be stonewalling? could you be stonewalling? could they be stonewalling?
Perfect	V-ing perfect
could I have stonewalled? could you have stonewalled? could he have stonewalled? could we have stonewalled? could you have stonewalled? could they have stonewalled?	could I have been stonewalling? could you have been stonewalling? could he have been stonewalling? could we have been stonewalling? could you have been stonewalling? could they have been stonewalling?

Interro-negative form

Simple form	V-ing form
couldn't I stonewall? couldn't you stonewall? couldn't he stonewall? couldn't we stonewall? couldn't you stonewall? couldn't they stonewall?	couldn't I be stonewalling? couldn't you be stonewalling? couldn't he be stonewalling? couldn't we be stonewalling? couldn't you be stonewalling? couldn't they be stonewalling?
Perfect	V-ing perfect
couldn't I have stonewalled? couldn't you have stonewalled? couldn't he have stonewalled? couldn't we have stonewalled? couldn't you have stonewalled? couldn't they have stonewalled?	couldn't I have been stonewalling? couldn't you have been stonewalling? couldn't he have been stonewalling? couldn't we have been stonewalling? couldn't you have been stonewalling? couldn't they have been stonewalling?