English verb conjugation
CAN MUG

Regular verb: mug - mugged - mugged

Affirmation

Simple form	V-ing form
I can mug you can mug he can mug we can mug you can mug they can mug	I can be mugging you can be mugging he can be mugging we can be mugging you can be mugging they can be mugging
Perfect	V-ing perfect
I can have mugged you can have mugged he can have mugged we can have mugged you can have mugged they can have mugged	I can have been mugging you can have been mugging he can have been mugging we can have been mugging you can have been mugging they can have been mugging

Negation

Simple form	V-ing form
I cannot mug you cannot mug he cannot mug we cannot mug you cannot mug they cannot mug	I cannot be mugging you cannot be mugging he cannot be mugging we cannot be mugging you cannot be mugging they cannot be mugging
Perfect	V-ing perfect
I cannot have mugged you cannot have mugged he cannot have mugged we cannot have mugged you cannot have mugged they cannot have mugged	I cannot have been mugging you cannot have been mugging he cannot have been mugging we cannot have been mugging you cannot have been mugging they cannot have been mugging

Interrogative form

Simple form	V-ing form
can I mug? can you mug? can he mug? can we mug? can you mug? can they mug?	can I be mugging? can you be mugging? can he be mugging? can we be mugging? can you be mugging? can they be mugging?
Perfect	V-ing perfect
can I have mugged? can you have mugged? can he have mugged? can we have mugged? can you have mugged? can they have mugged?	can I have been mugging? can you have been mugging? can he have been mugging? can we have been mugging? can you have been mugging? can they have been mugging?

Interro-negative form

Simple form	V-ing form
can I not mug? can you not mug? can he not mug? can we not mug? can you not mug? can they not mug?	can I not be mugging? can you not be mugging? can he not be mugging? can we not be mugging? can you not be mugging? can they not be mugging?
Perfect	V-ing perfect
can I not have mugged? can you not have mugged? can he not have mugged? can we not have mugged? can you not have mugged? can they not have mugged?	can I not have been mugging? can you not have been mugging? can he not have been mugging? can we not have been mugging? can you not have been mugging? can they not have been mugging?