English verb conjugation
COULD SOMERSAULT

Regular verb: somersault - somersaulted - somersaulted

Affirmation

Simple form	V-ing form
I could somersault you could somersault he could somersault we could somersault you could somersault they could somersault	I could be somersaulting you could be somersaulting he could be somersaulting we could be somersaulting you could be somersaulting they could be somersaulting
Perfect	V-ing perfect
I could have somersaulted you could have somersaulted he could have somersaulted we could have somersaulted you could have somersaulted they could have somersaulted	I could have been somersaulting you could have been somersaulting he could have been somersaulting we could have been somersaulting you could have been somersaulting they could have been somersaulting

Negation

Simple form	V-ing form
I couldn't somersault you couldn't somersault he couldn't somersault we couldn't somersault you couldn't somersault they couldn't somersault	I couldn't be somersaulting you couldn't be somersaulting he couldn't be somersaulting we couldn't be somersaulting you couldn't be somersaulting they couldn't be somersaulting
Perfect	V-ing perfect
I couldn't have somersaulted you couldn't have somersaulted he couldn't have somersaulted we couldn't have somersaulted you couldn't have somersaulted they couldn't have somersaulted	I couldn't have been somersaulting you couldn't have been somersaulting he couldn't have been somersaulting we couldn't have been somersaulting you couldn't have been somersaulting they couldn't have been somersaulting

Interrogative form

Simple form	V-ing form
could I somersault? could you somersault? could he somersault? could we somersault? could you somersault? could they somersault?	could I be somersaulting? could you be somersaulting? could he be somersaulting? could we be somersaulting? could you be somersaulting? could they be somersaulting?
Perfect	V-ing perfect
could I have somersaulted? could you have somersaulted? could he have somersaulted? could we have somersaulted? could you have somersaulted? could they have somersaulted?	could I have been somersaulting? could you have been somersaulting? could he have been somersaulting? could we have been somersaulting? could you have been somersaulting? could they have been somersaulting?

Interro-negative form

Simple form	V-ing form
couldn't I somersault? couldn't you somersault? couldn't he somersault? couldn't we somersault? couldn't you somersault? couldn't they somersault?	couldn't I be somersaulting? couldn't you be somersaulting? couldn't he be somersaulting? couldn't we be somersaulting? couldn't you be somersaulting? couldn't they be somersaulting?
Perfect	V-ing perfect
couldn't I have somersaulted? couldn't you have somersaulted? couldn't he have somersaulted? couldn't we have somersaulted? couldn't you have somersaulted? couldn't they have somersaulted?	couldn't I have been somersaulting? couldn't you have been somersaulting? couldn't he have been somersaulting? couldn't we have been somersaulting? couldn't you have been somersaulting? couldn't they have been somersaulting?