English verb conjugation
CAN BUG

Regular verb: bug - bugged - bugged

Affirmation

Simple form	V-ing form
I can bug you can bug she can bug we can bug you can bug they can bug	I can be bugging you can be bugging she can be bugging we can be bugging you can be bugging they can be bugging
Perfect	V-ing perfect
I can have bugged you can have bugged she can have bugged we can have bugged you can have bugged they can have bugged	I can have been bugging you can have been bugging she can have been bugging we can have been bugging you can have been bugging they can have been bugging

Negation

Simple form	V-ing form
I can't bug you can't bug she can't bug we can't bug you can't bug they can't bug	I can't be bugging you can't be bugging she can't be bugging we can't be bugging you can't be bugging they can't be bugging
Perfect	V-ing perfect
I can't have bugged you can't have bugged she can't have bugged we can't have bugged you can't have bugged they can't have bugged	I can't have been bugging you can't have been bugging she 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	V-ing form
can I bug? can you bug? can she bug? can we bug? can you bug? can they bug?	can I be bugging? can you be bugging? can she be bugging? can we be bugging? can you be bugging? can they be bugging?
Perfect	V-ing perfect
can I have bugged? can you have bugged? can she have bugged? can we have bugged? can you have bugged? can they have bugged?	can I have been bugging? can you have been bugging? can she have been bugging? can we have been bugging? can you have been bugging? can they have been bugging?

Interro-negative form

Simple form	V-ing form
can't I bug? can't you bug? can't she bug? can't we bug? can't you bug? can't they bug?	can't I be bugging? can't you be bugging? can't she be bugging? can't we be bugging? can't you be bugging? can't they be bugging?
Perfect	V-ing perfect
can't I have bugged? can't you have bugged? can't she have bugged? can't we have bugged? can't you have bugged? can't they have bugged?	can't I have been bugging? can't you have been bugging? can't she have been bugging? can't we have been bugging? can't you have been bugging? can't they have been bugging?