could uptilt
Regular verb: uptilt - uptilted- uptilted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I could uptilt
you could uptilt
she could uptilt
we could uptilt
you could uptilt
they could uptilt 	I could be uptilting
you could be uptilting
she could be uptilting
we could be uptilting
you could be uptilting
they could be uptilting	I could have uptilted
you could have uptilted
she could have uptilted
we could have uptilted
you could have uptilted
they could have uptilted	I could have been uptilting
you could have been uptilting
she could have been uptilting
we could have been uptilting
you could have been uptilting
they could have been uptilting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I couldn't uptilt
you couldn't uptilt
she couldn't uptilt
we couldn't uptilt
you couldn't uptilt
they couldn't uptilt 	I couldn't be uptilting
you couldn't be uptilting
she couldn't be uptilting
we couldn't be uptilting
you couldn't be uptilting
they couldn't be uptilting	I couldn't have uptilted
you couldn't have uptilted
she couldn't have uptilted
we couldn't have uptilted
you couldn't have uptilted
they couldn't have uptilted	I couldn't have been uptilting
you couldn't have been uptilting
she couldn't have been uptilting
we couldn't have been uptilting
you couldn't have been uptilting
they couldn't have been uptilting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
could I uptilt?
could you uptilt?
could she uptilt?
could we uptilt?
could you uptilt?
could they uptilt? 	could I be uptilting?
could you be uptilting?
could she be uptilting?
could we be uptilting?
could you be uptilting?
could they be uptilting? 	could I have uptilted?
could you have uptilted?
could she have uptilted?
could we have uptilted?
could you have uptilted?
could they have uptilted? 	could I have been uptilting?
could you have been uptilting?
could she have been uptilting?
could we have been uptilting?
could you have been uptilting?
could they have been uptilting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
couldn't I uptilt?
couldn't you uptilt?
couldn't she uptilt?
couldn't we uptilt?
couldn't you uptilt?
couldn't they uptilt? 	couldn't I be uptilting?
couldn't you be uptilting?
couldn't she be uptilting?
couldn't we be uptilting?
couldn't you be uptilting?
couldn't they be uptilting? 	couldn't I have uptilted?
couldn't you have uptilted?
couldn't she have uptilted?
couldn't we have uptilted?
couldn't you have uptilted?
couldn't they have uptilted? 	couldn't I have been uptilting?
couldn't you have been uptilting?
couldn't she have been uptilting?
couldn't we have been uptilting?
couldn't you have been uptilting?
couldn't they have been uptilting?