I can slipcover you can slipcover he can slipcover we can slipcover you can slipcover they can slipcover
V-ing form
I can be slipcovering you can be slipcovering he can be slipcovering we can be slipcovering you can be slipcovering they can be slipcovering
Perfect
I can have slipcovered you can have slipcovered he can have slipcovered we can have slipcovered you can have slipcovered they can have slipcovered
V-ing perfect
I can have been slipcovering you can have been slipcovering he can have been slipcovering we can have been slipcovering you can have been slipcovering they can have been slipcovering
Negation
Simple form
I can't slipcover you can't slipcover he can't slipcover we can't slipcover you can't slipcover they can't slipcover
V-ing form
I can't be slipcovering you can't be slipcovering he can't be slipcovering we can't be slipcovering you can't be slipcovering they can't be slipcovering
Perfect
I can't have slipcovered you can't have slipcovered he can't have slipcovered we can't have slipcovered you can't have slipcovered they can't have slipcovered
V-ing perfect
I can't have been slipcovering you can't have been slipcovering he can't have been slipcovering we can't have been slipcovering you can't have been slipcovering they can't have been slipcovering
Interrogative form
Simple form
can I slipcover? can you slipcover? can he slipcover? can we slipcover? can you slipcover? can they slipcover?
V-ing form
can I be slipcovering? can you be slipcovering? can he be slipcovering? can we be slipcovering? can you be slipcovering? can they be slipcovering?
Perfect
can I have slipcovered? can you have slipcovered? can he have slipcovered? can we have slipcovered? can you have slipcovered? can they have slipcovered?
V-ing perfect
can I have been slipcovering? can you have been slipcovering? can he have been slipcovering? can we have been slipcovering? can you have been slipcovering? can they have been slipcovering?
Interro-negative form
Simple form
can't I slipcover? can't you slipcover? can't he slipcover? can't we slipcover? can't you slipcover? can't they slipcover?
V-ing form
can't I be slipcovering? can't you be slipcovering? can't he be slipcovering? can't we be slipcovering? can't you be slipcovering? can't they be slipcovering?
Perfect
can't I have slipcovered? can't you have slipcovered? can't he have slipcovered? can't we have slipcovered? can't you have slipcovered? can't they have slipcovered?
V-ing perfect
can't I have been slipcovering? can't you have been slipcovering? can't he have been slipcovering? can't we have been slipcovering? can't you have been slipcovering? can't they have been slipcovering?