I can bunker you can bunker he can bunker we can bunker you can bunker they can bunker
V-ing form
I can be bunkering you can be bunkering he can be bunkering we can be bunkering you can be bunkering they can be bunkering
Perfect
I can have bunkered you can have bunkered he can have bunkered we can have bunkered you can have bunkered they can have bunkered
V-ing perfect
I can have been bunkering you can have been bunkering he can have been bunkering we can have been bunkering you can have been bunkering they can have been bunkering
Negation
Simple form
I can't bunker you can't bunker he can't bunker we can't bunker you can't bunker they can't bunker
V-ing form
I can't be bunkering you can't be bunkering he can't be bunkering we can't be bunkering you can't be bunkering they can't be bunkering
Perfect
I can't have bunkered you can't have bunkered he can't have bunkered we can't have bunkered you can't have bunkered they can't have bunkered
V-ing perfect
I can't have been bunkering you can't have been bunkering he can't have been bunkering we can't have been bunkering you can't have been bunkering they can't have been bunkering
Interrogative form
Simple form
can I bunker? can you bunker? can he bunker? can we bunker? can you bunker? can they bunker?
V-ing form
can I be bunkering? can you be bunkering? can he be bunkering? can we be bunkering? can you be bunkering? can they be bunkering?
Perfect
can I have bunkered? can you have bunkered? can he have bunkered? can we have bunkered? can you have bunkered? can they have bunkered?
V-ing perfect
can I have been bunkering? can you have been bunkering? can he have been bunkering? can we have been bunkering? can you have been bunkering? can they have been bunkering?
Interro-negative form
Simple form
can't I bunker? can't you bunker? can't he bunker? can't we bunker? can't you bunker? can't they bunker?
V-ing form
can't I be bunkering? can't you be bunkering? can't he be bunkering? can't we be bunkering? can't you be bunkering? can't they be bunkering?
Perfect
can't I have bunkered? can't you have bunkered? can't he have bunkered? can't we have bunkered? can't you have bunkered? can't they have bunkered?
V-ing perfect
can't I have been bunkering? can't you have been bunkering? can't he have been bunkering? can't we have been bunkering? can't you have been bunkering? can't they have been bunkering?