English verb conjugation
CAN UPSTART

Regular verb: upstart - upstarted - upstarted

Affirmation

Simple form	V-ing form
I can upstart you can upstart he can upstart we can upstart you can upstart they can upstart	I can be upstarting you can be upstarting he can be upstarting we can be upstarting you can be upstarting they can be upstarting
Perfect	V-ing perfect
I can have upstarted you can have upstarted he can have upstarted we can have upstarted you can have upstarted they can have upstarted	I can have been upstarting you can have been upstarting he can have been upstarting we can have been upstarting you can have been upstarting they can have been upstarting

Negation

Simple form	V-ing form
I cannot upstart you cannot upstart he cannot upstart we cannot upstart you cannot upstart they cannot upstart	I cannot be upstarting you cannot be upstarting he cannot be upstarting we cannot be upstarting you cannot be upstarting they cannot be upstarting
Perfect	V-ing perfect
I cannot have upstarted you cannot have upstarted he cannot have upstarted we cannot have upstarted you cannot have upstarted they cannot have upstarted	I cannot have been upstarting you cannot have been upstarting he cannot have been upstarting we cannot have been upstarting you cannot have been upstarting they cannot have been upstarting

Interrogative form

Simple form	V-ing form
can I upstart? can you upstart? can he upstart? can we upstart? can you upstart? can they upstart?	can I be upstarting? can you be upstarting? can he be upstarting? can we be upstarting? can you be upstarting? can they be upstarting?
Perfect	V-ing perfect
can I have upstarted? can you have upstarted? can he have upstarted? can we have upstarted? can you have upstarted? can they have upstarted?	can I have been upstarting? can you have been upstarting? can he have been upstarting? can we have been upstarting? can you have been upstarting? can they have been upstarting?

Interro-negative form

Simple form	V-ing form
can I not upstart? can you not upstart? can he not upstart? can we not upstart? can you not upstart? can they not upstart?	can I not be upstarting? can you not be upstarting? can he not be upstarting? can we not be upstarting? can you not be upstarting? can they not be upstarting?
Perfect	V-ing perfect
can I not have upstarted? can you not have upstarted? can he not have upstarted? can we not have upstarted? can you not have upstarted? can they not have upstarted?	can I not have been upstarting? can you not have been upstarting? can he not have been upstarting? can we not have been upstarting? can you not have been upstarting? can they not have been upstarting?