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