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