English verb conjugation
CAN PLUG

Regular verb: plug - plugged - plugged

Affirmation

Simple form	V-ing form
I can plug you can plug he can plug we can plug you can plug they can plug	I can be plugging you can be plugging he can be plugging we can be plugging you can be plugging they can be plugging
Perfect	V-ing perfect
I can have plugged you can have plugged he can have plugged we can have plugged you can have plugged they can have plugged	I can have been plugging you can have been plugging he can have been plugging we can have been plugging you can have been plugging they can have been plugging

Negation

Simple form	V-ing form
I cannot plug you cannot plug he cannot plug we cannot plug you cannot plug they cannot plug	I cannot be plugging you cannot be plugging he cannot be plugging we cannot be plugging you cannot be plugging they cannot be plugging
Perfect	V-ing perfect
I cannot have plugged you cannot have plugged he cannot have plugged we cannot have plugged you cannot have plugged they cannot have plugged	I cannot have been plugging you cannot have been plugging he cannot have been plugging we cannot have been plugging you cannot have been plugging they cannot have been plugging

Interrogative form

Simple form	V-ing form
can I plug? can you plug? can he plug? can we plug? can you plug? can they plug?	can I be plugging? can you be plugging? can he be plugging? can we be plugging? can you be plugging? can they be plugging?
Perfect	V-ing perfect
can I have plugged? can you have plugged? can he have plugged? can we have plugged? can you have plugged? can they have plugged?	can I have been plugging? can you have been plugging? can he have been plugging? can we have been plugging? can you have been plugging? can they have been plugging?

Interro-negative form

Simple form	V-ing form
can I not plug? can you not plug? can he not plug? can we not plug? can you not plug? can they not plug?	can I not be plugging? can you not be plugging? can he not be plugging? can we not be plugging? can you not be plugging? can they not be plugging?
Perfect	V-ing perfect
can I not have plugged? can you not have plugged? can he not have plugged? can we not have plugged? can you not have plugged? can they not have plugged?	can I not have been plugging? can you not have been plugging? can he not have been plugging? can we not have been plugging? can you not have been plugging? can they not have been plugging?