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