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