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 cannot unplug you cannot unplug he cannot unplug we cannot unplug you cannot unplug they cannot unplug
V-ing form
I cannot be unplugging you cannot be unplugging he cannot be unplugging we cannot be unplugging you cannot be unplugging they cannot be unplugging
Perfect
I cannot have unplugged you cannot have unplugged he cannot have unplugged we cannot have unplugged you cannot have unplugged they cannot have unplugged
V-ing perfect
I cannot have been unplugging you cannot have been unplugging he cannot have been unplugging we cannot have been unplugging you cannot have been unplugging they cannot 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 I not unplug? can you not unplug? can he not unplug? can we not unplug? can you not unplug? can they not unplug?
V-ing form
can I not be unplugging? can you not be unplugging? can he not be unplugging? can we not be unplugging? can you not be unplugging? can they not be unplugging?
Perfect
can I not have unplugged? can you not have unplugged? can he not have unplugged? can we not have unplugged? can you not have unplugged? can they not have unplugged?
V-ing perfect
can I not have been unplugging? can you not have been unplugging? can he not have been unplugging? can we not have been unplugging? can you not have been unplugging? can they not have been unplugging?