English verb conjugation
CAN FRONT

Regular verb: front - fronted - fronted

Affirmation

Simple form	V-ing form
I can front you can front she can front we can front you can front they can front	I can be fronting you can be fronting she can be fronting we can be fronting you can be fronting they can be fronting
Perfect	V-ing perfect
I can have fronted you can have fronted she can have fronted we can have fronted you can have fronted they can have fronted	I can have been fronting you can have been fronting she can have been fronting we can have been fronting you can have been fronting they can have been fronting

Negation

Simple form	V-ing form
I cannot front you cannot front she cannot front we cannot front you cannot front they cannot front	I cannot be fronting you cannot be fronting she cannot be fronting we cannot be fronting you cannot be fronting they cannot be fronting
Perfect	V-ing perfect
I cannot have fronted you cannot have fronted she cannot have fronted we cannot have fronted you cannot have fronted they cannot have fronted	I cannot have been fronting you cannot have been fronting she cannot have been fronting we cannot have been fronting you cannot have been fronting they cannot have been fronting

Interrogative form

Simple form	V-ing form
can I front? can you front? can she front? can we front? can you front? can they front?	can I be fronting? can you be fronting? can she be fronting? can we be fronting? can you be fronting? can they be fronting?
Perfect	V-ing perfect
can I have fronted? can you have fronted? can she have fronted? can we have fronted? can you have fronted? can they have fronted?	can I have been fronting? can you have been fronting? can she have been fronting? can we have been fronting? can you have been fronting? can they have been fronting?

Interro-negative form

Simple form	V-ing form
can I not front? can you not front? can she not front? can we not front? can you not front? can they not front?	can I not be fronting? can you not be fronting? can she not be fronting? can we not be fronting? can you not be fronting? can they not be fronting?
Perfect	V-ing perfect
can I not have fronted? can you not have fronted? can she not have fronted? can we not have fronted? can you not have fronted? can they not have fronted?	can I not have been fronting? can you not have been fronting? can she not have been fronting? can we not have been fronting? can you not have been fronting? can they not have been fronting?