I can unplug you can unplug he can unplug we can unplug you can unplug they can unplug
V-ing form
I can be unplugging you can be unplugging he can be unplugging we can be unplugging you can be unplugging they can be unplugging
Perfect
I can have unplugged you can have unplugged he can have unplugged we can have unplugged you can have unplugged they can have unplugged
V-ing perfect
I can have been unplugging you can have been unplugging he can have been unplugging we can have been unplugging you can have been unplugging they can have been unplugging
Negation
Simple form
I can't unplug you can't unplug he can't unplug we can't unplug you can't unplug they can't unplug
V-ing form
I can't be unplugging you can't be unplugging he can't be unplugging we can't be unplugging you can't be unplugging they can't be unplugging
Perfect
I can't have unplugged you can't have unplugged he can't have unplugged we can't have unplugged you can't have unplugged they can't have unplugged
V-ing perfect
I can't have been unplugging you can't have been unplugging he can't have been unplugging we can't have been unplugging you can't have been unplugging they can't have been unplugging
Interrogative form
Simple form
can I unplug? can you unplug? can he unplug? can we unplug? can you unplug? can they unplug?
V-ing form
can I be unplugging? can you be unplugging? can he be unplugging? can we be unplugging? can you be unplugging? can they be unplugging?
Perfect
can I have unplugged? can you have unplugged? can he have unplugged? can we have unplugged? can you have unplugged? can they have unplugged?
V-ing perfect
can I have been unplugging? can you have been unplugging? can he have been unplugging? can we have been unplugging? can you have been unplugging? can they have been unplugging?
Interro-negative form
Simple form
can't I unplug? can't you unplug? can't he unplug? can't we unplug? can't you unplug? can't they unplug?
V-ing form
can't I be unplugging? can't you be unplugging? can't he be unplugging? can't we be unplugging? can't you be unplugging? can't they be unplugging?
Perfect
can't I have unplugged? can't you have unplugged? can't he have unplugged? can't we have unplugged? can't you have unplugged? can't they have unplugged?
V-ing perfect
can't I have been unplugging? can't you have been unplugging? can't he have been unplugging? can't we have been unplugging? can't you have been unplugging? can't they have been unplugging?