English verb conjugation
CAN SUMMERSAULT

Regular verb: summersault - summersaulted - summersaulted

Affirmation

Simple form	V-ing form
I can summersault you can summersault he can summersault we can summersault you can summersault they can summersault	I can be summersaulting you can be summersaulting he can be summersaulting we can be summersaulting you can be summersaulting they can be summersaulting
Perfect	V-ing perfect
I can have summersaulted you can have summersaulted he can have summersaulted we can have summersaulted you can have summersaulted they can have summersaulted	I can have been summersaulting you can have been summersaulting he can have been summersaulting we can have been summersaulting you can have been summersaulting they can have been summersaulting

Negation

Simple form	V-ing form
I cannot summersault you cannot summersault he cannot summersault we cannot summersault you cannot summersault they cannot summersault	I cannot be summersaulting you cannot be summersaulting he cannot be summersaulting we cannot be summersaulting you cannot be summersaulting they cannot be summersaulting
Perfect	V-ing perfect
I cannot have summersaulted you cannot have summersaulted he cannot have summersaulted we cannot have summersaulted you cannot have summersaulted they cannot have summersaulted	I cannot have been summersaulting you cannot have been summersaulting he cannot have been summersaulting we cannot have been summersaulting you cannot have been summersaulting they cannot have been summersaulting

Interrogative form

Simple form	V-ing form
can I summersault? can you summersault? can he summersault? can we summersault? can you summersault? can they summersault?	can I be summersaulting? can you be summersaulting? can he be summersaulting? can we be summersaulting? can you be summersaulting? can they be summersaulting?
Perfect	V-ing perfect
can I have summersaulted? can you have summersaulted? can he have summersaulted? can we have summersaulted? can you have summersaulted? can they have summersaulted?	can I have been summersaulting? can you have been summersaulting? can he have been summersaulting? can we have been summersaulting? can you have been summersaulting? can they have been summersaulting?

Interro-negative form

Simple form	V-ing form
can I not summersault? can you not summersault? can he not summersault? can we not summersault? can you not summersault? can they not summersault?	can I not be summersaulting? can you not be summersaulting? can he not be summersaulting? can we not be summersaulting? can you not be summersaulting? can they not be summersaulting?
Perfect	V-ing perfect
can I not have summersaulted? can you not have summersaulted? can he not have summersaulted? can we not have summersaulted? can you not have summersaulted? can they not have summersaulted?	can I not have been summersaulting? can you not have been summersaulting? can he not have been summersaulting? can we not have been summersaulting? can you not have been summersaulting? can they not have been summersaulting?