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