English verb conjugation
COULD BUOY

Regular verb: buoy - buoyed - buoyed

Affirmation

Simple form	V-ing form
I could buoy you could buoy he could buoy we could buoy you could buoy they could buoy	I could be buoying you could be buoying he could be buoying we could be buoying you could be buoying they could be buoying
Perfect	V-ing perfect
I could have buoyed you could have buoyed he could have buoyed we could have buoyed you could have buoyed they could have buoyed	I could have been buoying you could have been buoying he could have been buoying we could have been buoying you could have been buoying they could have been buoying

Negation

Simple form	V-ing form
I couldn't buoy you couldn't buoy he couldn't buoy we couldn't buoy you couldn't buoy they couldn't buoy	I couldn't be buoying you couldn't be buoying he couldn't be buoying we couldn't be buoying you couldn't be buoying they couldn't be buoying
Perfect	V-ing perfect
I couldn't have buoyed you couldn't have buoyed he couldn't have buoyed we couldn't have buoyed you couldn't have buoyed they couldn't have buoyed	I couldn't have been buoying you couldn't have been buoying he couldn't have been buoying we couldn't have been buoying you couldn't have been buoying they couldn't have been buoying

Interrogative form

Simple form	V-ing form
could I buoy? could you buoy? could he buoy? could we buoy? could you buoy? could they buoy?	could I be buoying? could you be buoying? could he be buoying? could we be buoying? could you be buoying? could they be buoying?
Perfect	V-ing perfect
could I have buoyed? could you have buoyed? could he have buoyed? could we have buoyed? could you have buoyed? could they have buoyed?	could I have been buoying? could you have been buoying? could he have been buoying? could we have been buoying? could you have been buoying? could they have been buoying?

Interro-negative form

Simple form	V-ing form
couldn't I buoy? couldn't you buoy? couldn't he buoy? couldn't we buoy? couldn't you buoy? couldn't they buoy?	couldn't I be buoying? couldn't you be buoying? couldn't he be buoying? couldn't we be buoying? couldn't you be buoying? couldn't they be buoying?
Perfect	V-ing perfect
couldn't I have buoyed? couldn't you have buoyed? couldn't he have buoyed? couldn't we have buoyed? couldn't you have buoyed? couldn't they have buoyed?	couldn't I have been buoying? couldn't you have been buoying? couldn't he have been buoying? couldn't we have been buoying? couldn't you have been buoying? couldn't they have been buoying?