could stricken
Regular verb: stricken - strickened- strickened

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
I couldn't stricken
you couldn't stricken
he couldn't stricken
we couldn't stricken
you couldn't stricken
they couldn't stricken 	I couldn't be strickening
you couldn't be strickening
he couldn't be strickening
we couldn't be strickening
you couldn't be strickening
they couldn't be strickening	I couldn't have strickened
you couldn't have strickened
he couldn't have strickened
we couldn't have strickened
you couldn't have strickened
they couldn't have strickened	I couldn't have been strickening
you couldn't have been strickening
he couldn't have been strickening
we couldn't have been strickening
you couldn't have been strickening
they couldn't have been strickening	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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? 	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 	Perfect 	V-ing perfect 	
couldn't I stricken?
couldn't you stricken?
couldn't he stricken?
couldn't we stricken?
couldn't you stricken?
couldn't they stricken? 	couldn't I be strickening?
couldn't you be strickening?
couldn't he be strickening?
couldn't we be strickening?
couldn't you be strickening?
couldn't they be strickening? 	couldn't I have strickened?
couldn't you have strickened?
couldn't he have strickened?
couldn't we have strickened?
couldn't you have strickened?
couldn't they have strickened? 	couldn't I have been strickening?
couldn't you have been strickening?
couldn't he have been strickening?
couldn't we have been strickening?
couldn't you have been strickening?
couldn't they have been strickening?