could upsise
Verbo regular: upsise - upsised- upsised

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could upsise
you could upsise
he could upsise
we could upsise
you could upsise
they could upsise 	I could be upsising
you could be upsising
he could be upsising
we could be upsising
you could be upsising
they could be upsising	I could have upsised
you could have upsised
he could have upsised
we could have upsised
you could have upsised
they could have upsised	I could have been upsising
you could have been upsising
he could have been upsising
we could have been upsising
you could have been upsising
they could have been upsising	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I couldn't upsise
you couldn't upsise
he couldn't upsise
we couldn't upsise
you couldn't upsise
they couldn't upsise 	I couldn't be upsising
you couldn't be upsising
he couldn't be upsising
we couldn't be upsising
you couldn't be upsising
they couldn't be upsising	I couldn't have upsised
you couldn't have upsised
he couldn't have upsised
we couldn't have upsised
you couldn't have upsised
they couldn't have upsised	I couldn't have been upsising
you couldn't have been upsising
he couldn't have been upsising
we couldn't have been upsising
you couldn't have been upsising
they couldn't have been upsising	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I upsise?
could you upsise?
could he upsise?
could we upsise?
could you upsise?
could they upsise? 	could I be upsising?
could you be upsising?
could he be upsising?
could we be upsising?
could you be upsising?
could they be upsising? 	could I have upsised?
could you have upsised?
could he have upsised?
could we have upsised?
could you have upsised?
could they have upsised? 	could I have been upsising?
could you have been upsising?
could he have been upsising?
could we have been upsising?
could you have been upsising?
could they have been upsising? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
couldn't I upsise?
couldn't you upsise?
couldn't he upsise?
couldn't we upsise?
couldn't you upsise?
couldn't they upsise? 	couldn't I be upsising?
couldn't you be upsising?
couldn't he be upsising?
couldn't we be upsising?
couldn't you be upsising?
couldn't they be upsising? 	couldn't I have upsised?
couldn't you have upsised?
couldn't he have upsised?
couldn't we have upsised?
couldn't you have upsised?
couldn't they have upsised? 	couldn't I have been upsising?
couldn't you have been upsising?
couldn't he have been upsising?
couldn't we have been upsising?
couldn't you have been upsising?
couldn't they have been upsising?