English verb conjugation
COULD STRICKEN

Regular verb: stricken - strickened - strickened

Affirmation

Simple form	V-ing form
I could stricken you could stricken he could stricken we could stricken you could stricken they could stricken	I could be strickening you could be strickening he could be strickening we could be strickening you could be strickening they could be strickening
Perfect	V-ing perfect
I could have strickened you could have strickened he could have strickened we could have strickened you could have strickened they could have strickened	I could have been strickening you could have been strickening he could have been strickening we could have been strickening you could have been strickening they could have been strickening

Negation

Simple form	V-ing form
I could not stricken you could not stricken he could not stricken we could not stricken you could not stricken they could not stricken	I could not be strickening you could not be strickening he could not be strickening we could not be strickening you could not be strickening they could not be strickening
Perfect	V-ing perfect
I could not have strickened you could not have strickened he could not have strickened we could not have strickened you could not have strickened they could not have strickened	I could not have been strickening you could not have been strickening he could not have been strickening we could not have been strickening you could not have been strickening they could not have been strickening

Interrogative form

Simple form	V-ing form
could I stricken? could you stricken? could he stricken? could we stricken? could you stricken? could they stricken?	could I be strickening? could you be strickening? could he be strickening? could we be strickening? could you be strickening? could they be strickening?
Perfect	V-ing perfect
could I have strickened? could you have strickened? could he have strickened? could we have strickened? could you have strickened? could they have strickened?	could I have been strickening? could you have been strickening? could he have been strickening? could we have been strickening? could you have been strickening? could they have been strickening?

Interro-negative form

Simple form	V-ing form
could I not stricken? could you not stricken? could he not stricken? could we not stricken? could you not stricken? could they not stricken?	could I not be strickening? could you not be strickening? could he not be strickening? could we not be strickening? could you not be strickening? could they not be strickening?
Perfect	V-ing perfect
could I not have strickened? could you not have strickened? could he not have strickened? could we not have strickened? could you not have strickened? could they not have strickened?	could I not have been strickening? could you not have been strickening? could he not have been strickening? could we not have been strickening? could you not have been strickening? could they not have been strickening?