I can flog you can flog he can flog we can flog you can flog they can flog
V-ing form
I can be flogging you can be flogging he can be flogging we can be flogging you can be flogging they can be flogging
Perfect
I can have flogged you can have flogged he can have flogged we can have flogged you can have flogged they can have flogged
V-ing perfect
I can have been flogging you can have been flogging he can have been flogging we can have been flogging you can have been flogging they can have been flogging
Negation
Simple form
I can't flog you can't flog he can't flog we can't flog you can't flog they can't flog
V-ing form
I can't be flogging you can't be flogging he can't be flogging we can't be flogging you can't be flogging they can't be flogging
Perfect
I can't have flogged you can't have flogged he can't have flogged we can't have flogged you can't have flogged they can't have flogged
V-ing perfect
I can't have been flogging you can't have been flogging he can't have been flogging we can't have been flogging you can't have been flogging they can't have been flogging
Interrogative form
Simple form
can I flog? can you flog? can he flog? can we flog? can you flog? can they flog?
V-ing form
can I be flogging? can you be flogging? can he be flogging? can we be flogging? can you be flogging? can they be flogging?
Perfect
can I have flogged? can you have flogged? can he have flogged? can we have flogged? can you have flogged? can they have flogged?
V-ing perfect
can I have been flogging? can you have been flogging? can he have been flogging? can we have been flogging? can you have been flogging? can they have been flogging?
Interro-negative form
Simple form
can't I flog? can't you flog? can't he flog? can't we flog? can't you flog? can't they flog?
V-ing form
can't I be flogging? can't you be flogging? can't he be flogging? can't we be flogging? can't you be flogging? can't they be flogging?
Perfect
can't I have flogged? can't you have flogged? can't he have flogged? can't we have flogged? can't you have flogged? can't they have flogged?
V-ing perfect
can't I have been flogging? can't you have been flogging? can't he have been flogging? can't we have been flogging? can't you have been flogging? can't they have been flogging?