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