I can dither you can dither he can dither we can dither you can dither they can dither
V-ing form
I can be dithering you can be dithering he can be dithering we can be dithering you can be dithering they can be dithering
Perfect
I can have dithered you can have dithered he can have dithered we can have dithered you can have dithered they can have dithered
V-ing perfect
I can have been dithering you can have been dithering he can have been dithering we can have been dithering you can have been dithering they can have been dithering
Negation
Simple form
I can't dither you can't dither he can't dither we can't dither you can't dither they can't dither
V-ing form
I can't be dithering you can't be dithering he can't be dithering we can't be dithering you can't be dithering they can't be dithering
Perfect
I can't have dithered you can't have dithered he can't have dithered we can't have dithered you can't have dithered they can't have dithered
V-ing perfect
I can't have been dithering you can't have been dithering he can't have been dithering we can't have been dithering you can't have been dithering they can't have been dithering
Interrogative form
Simple form
can I dither? can you dither? can he dither? can we dither? can you dither? can they dither?
V-ing form
can I be dithering? can you be dithering? can he be dithering? can we be dithering? can you be dithering? can they be dithering?
Perfect
can I have dithered? can you have dithered? can he have dithered? can we have dithered? can you have dithered? can they have dithered?
V-ing perfect
can I have been dithering? can you have been dithering? can he have been dithering? can we have been dithering? can you have been dithering? can they have been dithering?
Interro-negative form
Simple form
can't I dither? can't you dither? can't he dither? can't we dither? can't you dither? can't they dither?
V-ing form
can't I be dithering? can't you be dithering? can't he be dithering? can't we be dithering? can't you be dithering? can't they be dithering?
Perfect
can't I have dithered? can't you have dithered? can't he have dithered? can't we have dithered? can't you have dithered? can't they have dithered?
V-ing perfect
can't I have been dithering? can't you have been dithering? can't he have been dithering? can't we have been dithering? can't you have been dithering? can't they have been dithering?