English verb conjugation
COULD ORB

Regular verb: orb - orbed - orbed

Affirmation

Simple form	V-ing form
I could orb you could orb she could orb we could orb you could orb they could orb	I could be orbing you could be orbing she could be orbing we could be orbing you could be orbing they could be orbing
Perfect	V-ing perfect
I could have orbed you could have orbed she could have orbed we could have orbed you could have orbed they could have orbed	I could have been orbing you could have been orbing she could have been orbing we could have been orbing you could have been orbing they could have been orbing

Negation

Simple form	V-ing form
I couldn't orb you couldn't orb she couldn't orb we couldn't orb you couldn't orb they couldn't orb	I couldn't be orbing you couldn't be orbing she couldn't be orbing we couldn't be orbing you couldn't be orbing they couldn't be orbing
Perfect	V-ing perfect
I couldn't have orbed you couldn't have orbed she couldn't have orbed we couldn't have orbed you couldn't have orbed they couldn't have orbed	I couldn't have been orbing you couldn't have been orbing she couldn't have been orbing we couldn't have been orbing you couldn't have been orbing they couldn't have been orbing

Interrogative form

Simple form	V-ing form
could I orb? could you orb? could she orb? could we orb? could you orb? could they orb?	could I be orbing? could you be orbing? could she be orbing? could we be orbing? could you be orbing? could they be orbing?
Perfect	V-ing perfect
could I have orbed? could you have orbed? could she have orbed? could we have orbed? could you have orbed? could they have orbed?	could I have been orbing? could you have been orbing? could she have been orbing? could we have been orbing? could you have been orbing? could they have been orbing?

Interro-negative form

Simple form	V-ing form
couldn't I orb? couldn't you orb? couldn't she orb? couldn't we orb? couldn't you orb? couldn't they orb?	couldn't I be orbing? couldn't you be orbing? couldn't she be orbing? couldn't we be orbing? couldn't you be orbing? couldn't they be orbing?
Perfect	V-ing perfect
couldn't I have orbed? couldn't you have orbed? couldn't she have orbed? couldn't we have orbed? couldn't you have orbed? couldn't they have orbed?	couldn't I have been orbing? couldn't you have been orbing? couldn't she have been orbing? couldn't we have been orbing? couldn't you have been orbing? couldn't they have been orbing?