English verb conjugation
COULD FRONT

Regular verb: front - fronted - fronted

Affirmation

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

Negation

Simple form	V-ing form
I couldn't front you couldn't front he couldn't front we couldn't front you couldn't front they couldn't front	I couldn't be fronting you couldn't be fronting he couldn't be fronting we couldn't be fronting you couldn't be fronting they couldn't be fronting
Perfect	V-ing perfect
I couldn't have fronted you couldn't have fronted he couldn't have fronted we couldn't have fronted you couldn't have fronted they couldn't have fronted	I couldn't have been fronting you couldn't have been fronting he couldn't have been fronting we couldn't have been fronting you couldn't have been fronting they couldn't have been fronting

Interrogative form

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

Interro-negative form

Simple form	V-ing form
couldn't I front? couldn't you front? couldn't he front? couldn't we front? couldn't you front? couldn't they front?	couldn't I be fronting? couldn't you be fronting? couldn't he be fronting? couldn't we be fronting? couldn't you be fronting? couldn't they be fronting?
Perfect	V-ing perfect
couldn't I have fronted? couldn't you have fronted? couldn't he have fronted? couldn't we have fronted? couldn't you have fronted? couldn't they have fronted?	couldn't I have been fronting? couldn't you have been fronting? couldn't he have been fronting? couldn't we have been fronting? couldn't you have been fronting? couldn't they have been fronting?