could upsise
Regular verb: upsise - upsised- upsised

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could upsise
you could upsise
she could upsise
we could upsise
you could upsise
they could upsise 	I could be upsising
you could be upsising
she could be upsising
we could be upsising
you could be upsising
they could be upsising	I could have upsised
you could have upsised
she 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
she could have been upsising
we could have been upsising
you could have been upsising
they could have been upsising	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't upsise
you couldn't upsise
she 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
she 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
she 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
she couldn't have been upsising
we couldn't have been upsising
you couldn't have been upsising
they couldn't have been upsising	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I upsise?
could you upsise?
could she upsise?
could we upsise?
could you upsise?
could they upsise? 	could I be upsising?
could you be upsising?
could she be upsising?
could we be upsising?
could you be upsising?
could they be upsising? 	could I have upsised?
could you have upsised?
could she 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 she have been upsising?
could we have been upsising?
could you have been upsising?
could they have been upsising? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I upsise?
couldn't you upsise?
couldn't she 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 she 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 she 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 she have been upsising?
couldn't we have been upsising?
couldn't you have been upsising?
couldn't they have been upsising?