English verb conjugation
COULD BEEP

Regular verb: beep - beeped - beeped

Affirmation

Simple form	V-ing form
I could beep you could beep he could beep we could beep you could beep they could beep	I could be beeping you could be beeping he could be beeping we could be beeping you could be beeping they could be beeping
Perfect	V-ing perfect
I could have beeped you could have beeped he could have beeped we could have beeped you could have beeped they could have beeped	I could have been beeping you could have been beeping he could have been beeping we could have been beeping you could have been beeping they could have been beeping

Negation

Simple form	V-ing form
I couldn't beep you couldn't beep he couldn't beep we couldn't beep you couldn't beep they couldn't beep	I couldn't be beeping you couldn't be beeping he couldn't be beeping we couldn't be beeping you couldn't be beeping they couldn't be beeping
Perfect	V-ing perfect
I couldn't have beeped you couldn't have beeped he couldn't have beeped we couldn't have beeped you couldn't have beeped they couldn't have beeped	I couldn't have been beeping you couldn't have been beeping he couldn't have been beeping we couldn't have been beeping you couldn't have been beeping they couldn't have been beeping

Interrogative form

Simple form	V-ing form
could I beep? could you beep? could he beep? could we beep? could you beep? could they beep?	could I be beeping? could you be beeping? could he be beeping? could we be beeping? could you be beeping? could they be beeping?
Perfect	V-ing perfect
could I have beeped? could you have beeped? could he have beeped? could we have beeped? could you have beeped? could they have beeped?	could I have been beeping? could you have been beeping? could he have been beeping? could we have been beeping? could you have been beeping? could they have been beeping?

Interro-negative form

Simple form	V-ing form
couldn't I beep? couldn't you beep? couldn't he beep? couldn't we beep? couldn't you beep? couldn't they beep?	couldn't I be beeping? couldn't you be beeping? couldn't he be beeping? couldn't we be beeping? couldn't you be beeping? couldn't they be beeping?
Perfect	V-ing perfect
couldn't I have beeped? couldn't you have beeped? couldn't he have beeped? couldn't we have beeped? couldn't you have beeped? couldn't they have beeped?	couldn't I have been beeping? couldn't you have been beeping? couldn't he have been beeping? couldn't we have been beeping? couldn't you have been beeping? couldn't they have been beeping?