English verb conjugation
COULD UPTILT

Regular verb: uptilt - uptilted - uptilted

Affirmation

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