could barricade
Regular verb: barricade - barricaded- barricaded

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could barricade
you could barricade
he could barricade
we could barricade
you could barricade
they could barricade 	I could be barricading
you could be barricading
he could be barricading
we could be barricading
you could be barricading
they could be barricading	I could have barricaded
you could have barricaded
he could have barricaded
we could have barricaded
you could have barricaded
they could have barricaded	I could have been barricading
you could have been barricading
he could have been barricading
we could have been barricading
you could have been barricading
they could have been barricading	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't barricade
you couldn't barricade
he couldn't barricade
we couldn't barricade
you couldn't barricade
they couldn't barricade 	I couldn't be barricading
you couldn't be barricading
he couldn't be barricading
we couldn't be barricading
you couldn't be barricading
they couldn't be barricading	I couldn't have barricaded
you couldn't have barricaded
he couldn't have barricaded
we couldn't have barricaded
you couldn't have barricaded
they couldn't have barricaded	I couldn't have been barricading
you couldn't have been barricading
he couldn't have been barricading
we couldn't have been barricading
you couldn't have been barricading
they couldn't have been barricading	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I barricade?
could you barricade?
could he barricade?
could we barricade?
could you barricade?
could they barricade? 	could I be barricading?
could you be barricading?
could he be barricading?
could we be barricading?
could you be barricading?
could they be barricading? 	could I have barricaded?
could you have barricaded?
could he have barricaded?
could we have barricaded?
could you have barricaded?
could they have barricaded? 	could I have been barricading?
could you have been barricading?
could he have been barricading?
could we have been barricading?
could you have been barricading?
could they have been barricading? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I barricade?
couldn't you barricade?
couldn't he barricade?
couldn't we barricade?
couldn't you barricade?
couldn't they barricade? 	couldn't I be barricading?
couldn't you be barricading?
couldn't he be barricading?
couldn't we be barricading?
couldn't you be barricading?
couldn't they be barricading? 	couldn't I have barricaded?
couldn't you have barricaded?
couldn't he have barricaded?
couldn't we have barricaded?
couldn't you have barricaded?
couldn't they have barricaded? 	couldn't I have been barricading?
couldn't you have been barricading?
couldn't he have been barricading?
couldn't we have been barricading?
couldn't you have been barricading?
couldn't they have been barricading?