could upsweep
Irregular verb: upsweep - upswept- upswept

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could upsweep
you could upsweep
she could upsweep
we could upsweep
you could upsweep
they could upsweep 	I could be upsweeping
you could be upsweeping
she could be upsweeping
we could be upsweeping
you could be upsweeping
they could be upsweeping	I could have upswept
you could have upswept
she could have upswept
we could have upswept
you could have upswept
they could have upswept	I could have been upsweeping
you could have been upsweeping
she could have been upsweeping
we could have been upsweeping
you could have been upsweeping
they could have been upsweeping	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't upsweep
you couldn't upsweep
she couldn't upsweep
we couldn't upsweep
you couldn't upsweep
they couldn't upsweep 	I couldn't be upsweeping
you couldn't be upsweeping
she couldn't be upsweeping
we couldn't be upsweeping
you couldn't be upsweeping
they couldn't be upsweeping	I couldn't have upswept
you couldn't have upswept
she couldn't have upswept
we couldn't have upswept
you couldn't have upswept
they couldn't have upswept	I couldn't have been upsweeping
you couldn't have been upsweeping
she couldn't have been upsweeping
we couldn't have been upsweeping
you couldn't have been upsweeping
they couldn't have been upsweeping	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I upsweep?
could you upsweep?
could she upsweep?
could we upsweep?
could you upsweep?
could they upsweep? 	could I be upsweeping?
could you be upsweeping?
could she be upsweeping?
could we be upsweeping?
could you be upsweeping?
could they be upsweeping? 	could I have upswept?
could you have upswept?
could she have upswept?
could we have upswept?
could you have upswept?
could they have upswept? 	could I have been upsweeping?
could you have been upsweeping?
could she have been upsweeping?
could we have been upsweeping?
could you have been upsweeping?
could they have been upsweeping? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I upsweep?
couldn't you upsweep?
couldn't she upsweep?
couldn't we upsweep?
couldn't you upsweep?
couldn't they upsweep? 	couldn't I be upsweeping?
couldn't you be upsweeping?
couldn't she be upsweeping?
couldn't we be upsweeping?
couldn't you be upsweeping?
couldn't they be upsweeping? 	couldn't I have upswept?
couldn't you have upswept?
couldn't she have upswept?
couldn't we have upswept?
couldn't you have upswept?
couldn't they have upswept? 	couldn't I have been upsweeping?
couldn't you have been upsweeping?
couldn't she have been upsweeping?
couldn't we have been upsweeping?
couldn't you have been upsweeping?
couldn't they have been upsweeping?