I can bug you can bug he can bug we can bug you can bug they can bug
V-ing form
I can be bugging you can be bugging he can be bugging we can be bugging you can be bugging they can be bugging
Perfect
I can have bugged you can have bugged he can have bugged we can have bugged you can have bugged they can have bugged
V-ing perfect
I can have been bugging you can have been bugging he can have been bugging we can have been bugging you can have been bugging they can have been bugging
Negation
Simple form
I can't bug you can't bug he can't bug we can't bug you can't bug they can't bug
V-ing form
I can't be bugging you can't be bugging he can't be bugging we can't be bugging you can't be bugging they can't be bugging
Perfect
I can't have bugged you can't have bugged he can't have bugged we can't have bugged you can't have bugged they can't have bugged
V-ing perfect
I can't have been bugging you can't have been bugging he can't have been bugging we can't have been bugging you can't have been bugging they can't have been bugging
Interrogative form
Simple form
can I bug? can you bug? can he bug? can we bug? can you bug? can they bug?
V-ing form
can I be bugging? can you be bugging? can he be bugging? can we be bugging? can you be bugging? can they be bugging?
Perfect
can I have bugged? can you have bugged? can he have bugged? can we have bugged? can you have bugged? can they have bugged?
V-ing perfect
can I have been bugging? can you have been bugging? can he have been bugging? can we have been bugging? can you have been bugging? can they have been bugging?
Interro-negative form
Simple form
can't I bug? can't you bug? can't he bug? can't we bug? can't you bug? can't they bug?
V-ing form
can't I be bugging? can't you be bugging? can't he be bugging? can't we be bugging? can't you be bugging? can't they be bugging?
Perfect
can't I have bugged? can't you have bugged? can't he have bugged? can't we have bugged? can't you have bugged? can't they have bugged?
V-ing perfect
can't I have been bugging? can't you have been bugging? can't he have been bugging? can't we have been bugging? can't you have been bugging? can't they have been bugging?