I could argufy you could argufy she could argufy we could argufy you could argufy they could argufy
V-ing form
I could be argufying you could be argufying she could be argufying we could be argufying you could be argufying they could be argufying
Perfect
I could have argufied you could have argufied she could have argufied we could have argufied you could have argufied they could have argufied
V-ing perfect
I could have been argufying you could have been argufying she could have been argufying we could have been argufying you could have been argufying they could have been argufying
Negation
Simple form
I couldn't argufy you couldn't argufy she couldn't argufy we couldn't argufy you couldn't argufy they couldn't argufy
V-ing form
I couldn't be argufying you couldn't be argufying she couldn't be argufying we couldn't be argufying you couldn't be argufying they couldn't be argufying
Perfect
I couldn't have argufied you couldn't have argufied she couldn't have argufied we couldn't have argufied you couldn't have argufied they couldn't have argufied
V-ing perfect
I couldn't have been argufying you couldn't have been argufying she couldn't have been argufying we couldn't have been argufying you couldn't have been argufying they couldn't have been argufying
Interrogative form
Simple form
could I argufy? could you argufy? could she argufy? could we argufy? could you argufy? could they argufy?
V-ing form
could I be argufying? could you be argufying? could she be argufying? could we be argufying? could you be argufying? could they be argufying?
Perfect
could I have argufied? could you have argufied? could she have argufied? could we have argufied? could you have argufied? could they have argufied?
V-ing perfect
could I have been argufying? could you have been argufying? could she have been argufying? could we have been argufying? could you have been argufying? could they have been argufying?
Interro-negative form
Simple form
couldn't I argufy? couldn't you argufy? couldn't she argufy? couldn't we argufy? couldn't you argufy? couldn't they argufy?
V-ing form
couldn't I be argufying? couldn't you be argufying? couldn't she be argufying? couldn't we be argufying? couldn't you be argufying? couldn't they be argufying?
Perfect
couldn't I have argufied? couldn't you have argufied? couldn't she have argufied? couldn't we have argufied? couldn't you have argufied? couldn't they have argufied?
V-ing perfect
couldn't I have been argufying? couldn't you have been argufying? couldn't she have been argufying? couldn't we have been argufying? couldn't you have been argufying? couldn't they have been argufying?