I could blackguard you could blackguard she could blackguard we could blackguard you could blackguard they could blackguard
V-ing form
I could be blackguarding you could be blackguarding she could be blackguarding we could be blackguarding you could be blackguarding they could be blackguarding
Perfect
I could have blackguarded you could have blackguarded she could have blackguarded we could have blackguarded you could have blackguarded they could have blackguarded
V-ing perfect
I could have been blackguarding you could have been blackguarding she could have been blackguarding we could have been blackguarding you could have been blackguarding they could have been blackguarding
Negation
Simple form
I could not blackguard you could not blackguard she could not blackguard we could not blackguard you could not blackguard they could not blackguard
V-ing form
I could not be blackguarding you could not be blackguarding she could not be blackguarding we could not be blackguarding you could not be blackguarding they could not be blackguarding
Perfect
I could not have blackguarded you could not have blackguarded she could not have blackguarded we could not have blackguarded you could not have blackguarded they could not have blackguarded
V-ing perfect
I could not have been blackguarding you could not have been blackguarding she could not have been blackguarding we could not have been blackguarding you could not have been blackguarding they could not have been blackguarding
Interrogative form
Simple form
could I blackguard? could you blackguard? could she blackguard? could we blackguard? could you blackguard? could they blackguard?
V-ing form
could I be blackguarding? could you be blackguarding? could she be blackguarding? could we be blackguarding? could you be blackguarding? could they be blackguarding?
Perfect
could I have blackguarded? could you have blackguarded? could she have blackguarded? could we have blackguarded? could you have blackguarded? could they have blackguarded?
V-ing perfect
could I have been blackguarding? could you have been blackguarding? could she have been blackguarding? could we have been blackguarding? could you have been blackguarding? could they have been blackguarding?
Interro-negative form
Simple form
could I not blackguard? could you not blackguard? could she not blackguard? could we not blackguard? could you not blackguard? could they not blackguard?
V-ing form
could I not be blackguarding? could you not be blackguarding? could she not be blackguarding? could we not be blackguarding? could you not be blackguarding? could they not be blackguarding?
Perfect
could I not have blackguarded? could you not have blackguarded? could she not have blackguarded? could we not have blackguarded? could you not have blackguarded? could they not have blackguarded?
V-ing perfect
could I not have been blackguarding? could you not have been blackguarding? could she not have been blackguarding? could we not have been blackguarding? could you not have been blackguarding? could they not have been blackguarding?