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