I could disarticulate you could disarticulate he could disarticulate we could disarticulate you could disarticulate they could disarticulate
V-ing form
I could be disarticulating you could be disarticulating he could be disarticulating we could be disarticulating you could be disarticulating they could be disarticulating
Perfect
I could have disarticulated you could have disarticulated he could have disarticulated we could have disarticulated you could have disarticulated they could have disarticulated
V-ing perfect
I could have been disarticulating you could have been disarticulating he could have been disarticulating we could have been disarticulating you could have been disarticulating they could have been disarticulating
Negation
Simple form
I couldn't disarticulate you couldn't disarticulate he couldn't disarticulate we couldn't disarticulate you couldn't disarticulate they couldn't disarticulate
V-ing form
I couldn't be disarticulating you couldn't be disarticulating he couldn't be disarticulating we couldn't be disarticulating you couldn't be disarticulating they couldn't be disarticulating
Perfect
I couldn't have disarticulated you couldn't have disarticulated he couldn't have disarticulated we couldn't have disarticulated you couldn't have disarticulated they couldn't have disarticulated
V-ing perfect
I couldn't have been disarticulating you couldn't have been disarticulating he couldn't have been disarticulating we couldn't have been disarticulating you couldn't have been disarticulating they couldn't have been disarticulating
Interrogative form
Simple form
could I disarticulate? could you disarticulate? could he disarticulate? could we disarticulate? could you disarticulate? could they disarticulate?
V-ing form
could I be disarticulating? could you be disarticulating? could he be disarticulating? could we be disarticulating? could you be disarticulating? could they be disarticulating?
Perfect
could I have disarticulated? could you have disarticulated? could he have disarticulated? could we have disarticulated? could you have disarticulated? could they have disarticulated?
V-ing perfect
could I have been disarticulating? could you have been disarticulating? could he have been disarticulating? could we have been disarticulating? could you have been disarticulating? could they have been disarticulating?
Interro-negative form
Simple form
couldn't I disarticulate? couldn't you disarticulate? couldn't he disarticulate? couldn't we disarticulate? couldn't you disarticulate? couldn't they disarticulate?
V-ing form
couldn't I be disarticulating? couldn't you be disarticulating? couldn't he be disarticulating? couldn't we be disarticulating? couldn't you be disarticulating? couldn't they be disarticulating?
Perfect
couldn't I have disarticulated? couldn't you have disarticulated? couldn't he have disarticulated? couldn't we have disarticulated? couldn't you have disarticulated? couldn't they have disarticulated?
V-ing perfect
couldn't I have been disarticulating? couldn't you have been disarticulating? couldn't he have been disarticulating? couldn't we have been disarticulating? couldn't you have been disarticulating? couldn't they have been disarticulating?