could upstart
Verbe régulier : upstart - upstarted- upstarted

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could upstart
you could upstart
he could upstart
we could upstart
you could upstart
they could upstart 	I could be upstarting
you could be upstarting
he could be upstarting
we could be upstarting
you could be upstarting
they could be upstarting	I could have upstarted
you could have upstarted
he could have upstarted
we could have upstarted
you could have upstarted
they could have upstarted	I could have been upstarting
you could have been upstarting
he could have been upstarting
we could have been upstarting
you could have been upstarting
they could have been upstarting	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I couldn't upstart
you couldn't upstart
he couldn't upstart
we couldn't upstart
you couldn't upstart
they couldn't upstart 	I couldn't be upstarting
you couldn't be upstarting
he couldn't be upstarting
we couldn't be upstarting
you couldn't be upstarting
they couldn't be upstarting	I couldn't have upstarted
you couldn't have upstarted
he couldn't have upstarted
we couldn't have upstarted
you couldn't have upstarted
they couldn't have upstarted	I couldn't have been upstarting
you couldn't have been upstarting
he couldn't have been upstarting
we couldn't have been upstarting
you couldn't have been upstarting
they couldn't have been upstarting	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
could I upstart?
could you upstart?
could he upstart?
could we upstart?
could you upstart?
could they upstart? 	could I be upstarting?
could you be upstarting?
could he be upstarting?
could we be upstarting?
could you be upstarting?
could they be upstarting? 	could I have upstarted?
could you have upstarted?
could he have upstarted?
could we have upstarted?
could you have upstarted?
could they have upstarted? 	could I have been upstarting?
could you have been upstarting?
could he have been upstarting?
could we have been upstarting?
could you have been upstarting?
could they have been upstarting? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
couldn't I upstart?
couldn't you upstart?
couldn't he upstart?
couldn't we upstart?
couldn't you upstart?
couldn't they upstart? 	couldn't I be upstarting?
couldn't you be upstarting?
couldn't he be upstarting?
couldn't we be upstarting?
couldn't you be upstarting?
couldn't they be upstarting? 	couldn't I have upstarted?
couldn't you have upstarted?
couldn't he have upstarted?
couldn't we have upstarted?
couldn't you have upstarted?
couldn't they have upstarted? 	couldn't I have been upstarting?
couldn't you have been upstarting?
couldn't he have been upstarting?
couldn't we have been upstarting?
couldn't you have been upstarting?
couldn't they have been upstarting?