could blockade
Regular verb: blockade - blockaded- blockaded

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could blockade
you could blockade
she could blockade
we could blockade
you could blockade
they could blockade 	I could be blockading
you could be blockading
she could be blockading
we could be blockading
you could be blockading
they could be blockading	I could have blockaded
you could have blockaded
she could have blockaded
we could have blockaded
you could have blockaded
they could have blockaded	I could have been blockading
you could have been blockading
she could have been blockading
we could have been blockading
you could have been blockading
they could have been blockading	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could not blockade
you could not blockade
she could not blockade
we could not blockade
you could not blockade
they could not blockade 	I could not be blockading
you could not be blockading
she could not be blockading
we could not be blockading
you could not be blockading
they could not be blockading	I could not have blockaded
you could not have blockaded
she could not have blockaded
we could not have blockaded
you could not have blockaded
they could not have blockaded	I could not have been blockading
you could not have been blockading
she could not have been blockading
we could not have been blockading
you could not have been blockading
they could not have been blockading	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I blockade?
could you blockade?
could she blockade?
could we blockade?
could you blockade?
could they blockade? 	could I be blockading?
could you be blockading?
could she be blockading?
could we be blockading?
could you be blockading?
could they be blockading? 	could I have blockaded?
could you have blockaded?
could she have blockaded?
could we have blockaded?
could you have blockaded?
could they have blockaded? 	could I have been blockading?
could you have been blockading?
could she have been blockading?
could we have been blockading?
could you have been blockading?
could they have been blockading? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I not blockade?
could you not blockade?
could she not blockade?
could we not blockade?
could you not blockade?
could they not blockade? 	could I not be blockading?
could you not be blockading?
could she not be blockading?
could we not be blockading?
could you not be blockading?
could they not be blockading? 	could I not have blockaded?
could you not have blockaded?
could she not have blockaded?
could we not have blockaded?
could you not have blockaded?
could they not have blockaded? 	could I not have been blockading?
could you not have been blockading?
could she not have been blockading?
could we not have been blockading?
could you not have been blockading?
could they not have been blockading?