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