English verb conjugation
COULD RIM

Regular verb: rim - rimed - rimed

Affirmation

Simple form	V-ing form
I could rim you could rim he could rim we could rim you could rim they could rim	I could be riming you could be riming he could be riming we could be riming you could be riming they could be riming
Perfect	V-ing perfect
I could have rimed you could have rimed he could have rimed we could have rimed you could have rimed they could have rimed	I could have been riming you could have been riming he could have been riming we could have been riming you could have been riming they could have been riming

Negation

Simple form	V-ing form
I couldn't rim you couldn't rim he couldn't rim we couldn't rim you couldn't rim they couldn't rim	I couldn't be riming you couldn't be riming he couldn't be riming we couldn't be riming you couldn't be riming they couldn't be riming
Perfect	V-ing perfect
I couldn't have rimed you couldn't have rimed he couldn't have rimed we couldn't have rimed you couldn't have rimed they couldn't have rimed	I couldn't have been riming you couldn't have been riming he couldn't have been riming we couldn't have been riming you couldn't have been riming they couldn't have been riming

Interrogative form

Simple form	V-ing form
could I rim? could you rim? could he rim? could we rim? could you rim? could they rim?	could I be riming? could you be riming? could he be riming? could we be riming? could you be riming? could they be riming?
Perfect	V-ing perfect
could I have rimed? could you have rimed? could he have rimed? could we have rimed? could you have rimed? could they have rimed?	could I have been riming? could you have been riming? could he have been riming? could we have been riming? could you have been riming? could they have been riming?

Interro-negative form

Simple form	V-ing form
couldn't I rim? couldn't you rim? couldn't he rim? couldn't we rim? couldn't you rim? couldn't they rim?	couldn't I be riming? couldn't you be riming? couldn't he be riming? couldn't we be riming? couldn't you be riming? couldn't they be riming?
Perfect	V-ing perfect
couldn't I have rimed? couldn't you have rimed? couldn't he have rimed? couldn't we have rimed? couldn't you have rimed? couldn't they have rimed?	couldn't I have been riming? couldn't you have been riming? couldn't he have been riming? couldn't we have been riming? couldn't you have been riming? couldn't they have been riming?