I can buoy you can buoy she can buoy we can buoy you can buoy they can buoy
V-ing form
I can be buoying you can be buoying she can be buoying we can be buoying you can be buoying they can be buoying
Perfect
I can have buoyed you can have buoyed she can have buoyed we can have buoyed you can have buoyed they can have buoyed
V-ing perfect
I can have been buoying you can have been buoying she can have been buoying we can have been buoying you can have been buoying they can have been buoying
Negation
Simple form
I can't buoy you can't buoy she can't buoy we can't buoy you can't buoy they can't buoy
V-ing form
I can't be buoying you can't be buoying she can't be buoying we can't be buoying you can't be buoying they can't be buoying
Perfect
I can't have buoyed you can't have buoyed she can't have buoyed we can't have buoyed you can't have buoyed they can't have buoyed
V-ing perfect
I can't have been buoying you can't have been buoying she can't have been buoying we can't have been buoying you can't have been buoying they can't have been buoying
Interrogative form
Simple form
can I buoy? can you buoy? can she buoy? can we buoy? can you buoy? can they buoy?
V-ing form
can I be buoying? can you be buoying? can she be buoying? can we be buoying? can you be buoying? can they be buoying?
Perfect
can I have buoyed? can you have buoyed? can she have buoyed? can we have buoyed? can you have buoyed? can they have buoyed?
V-ing perfect
can I have been buoying? can you have been buoying? can she have been buoying? can we have been buoying? can you have been buoying? can they have been buoying?
Interro-negative form
Simple form
can't I buoy? can't you buoy? can't she buoy? can't we buoy? can't you buoy? can't they buoy?
V-ing form
can't I be buoying? can't you be buoying? can't she be buoying? can't we be buoying? can't you be buoying? can't they be buoying?
Perfect
can't I have buoyed? can't you have buoyed? can't she have buoyed? can't we have buoyed? can't you have buoyed? can't they have buoyed?
V-ing perfect
can't I have been buoying? can't you have been buoying? can't she have been buoying? can't we have been buoying? can't you have been buoying? can't they have been buoying?