English verb conjugation
COULD TILT

Regular verb: tilt - tilted - tilted

Affirmation

Simple form	V-ing form
I could tilt you could tilt he could tilt we could tilt you could tilt they could tilt	I could be tilting you could be tilting he could be tilting we could be tilting you could be tilting they could be tilting
Perfect	V-ing perfect
I could have tilted you could have tilted he could have tilted we could have tilted you could have tilted they could have tilted	I could have been tilting you could have been tilting he could have been tilting we could have been tilting you could have been tilting they could have been tilting

Negation

Simple form	V-ing form
I couldn't tilt you couldn't tilt he couldn't tilt we couldn't tilt you couldn't tilt they couldn't tilt	I couldn't be tilting you couldn't be tilting he couldn't be tilting we couldn't be tilting you couldn't be tilting they couldn't be tilting
Perfect	V-ing perfect
I couldn't have tilted you couldn't have tilted he couldn't have tilted we couldn't have tilted you couldn't have tilted they couldn't have tilted	I couldn't have been tilting you couldn't have been tilting he couldn't have been tilting we couldn't have been tilting you couldn't have been tilting they couldn't have been tilting

Interrogative form

Simple form	V-ing form
could I tilt? could you tilt? could he tilt? could we tilt? could you tilt? could they tilt?	could I be tilting? could you be tilting? could he be tilting? could we be tilting? could you be tilting? could they be tilting?
Perfect	V-ing perfect
could I have tilted? could you have tilted? could he have tilted? could we have tilted? could you have tilted? could they have tilted?	could I have been tilting? could you have been tilting? could he have been tilting? could we have been tilting? could you have been tilting? could they have been tilting?

Interro-negative form

Simple form	V-ing form
couldn't I tilt? couldn't you tilt? couldn't he tilt? couldn't we tilt? couldn't you tilt? couldn't they tilt?	couldn't I be tilting? couldn't you be tilting? couldn't he be tilting? couldn't we be tilting? couldn't you be tilting? couldn't they be tilting?
Perfect	V-ing perfect
couldn't I have tilted? couldn't you have tilted? couldn't he have tilted? couldn't we have tilted? couldn't you have tilted? couldn't they have tilted?	couldn't I have been tilting? couldn't you have been tilting? couldn't he have been tilting? couldn't we have been tilting? couldn't you have been tilting? couldn't they have been tilting?