English verb conjugation
COULD RESPINE

Regular verb: respine - respined - respined

Affirmation

Simple form	V-ing form
I could respine you could respine he could respine we could respine you could respine they could respine	I could be respining you could be respining he could be respining we could be respining you could be respining they could be respining
Perfect	V-ing perfect
I could have respined you could have respined he could have respined we could have respined you could have respined they could have respined	I could have been respining you could have been respining he could have been respining we could have been respining you could have been respining they could have been respining

Negation

Simple form	V-ing form
I couldn't respine you couldn't respine he couldn't respine we couldn't respine you couldn't respine they couldn't respine	I couldn't be respining you couldn't be respining he couldn't be respining we couldn't be respining you couldn't be respining they couldn't be respining
Perfect	V-ing perfect
I couldn't have respined you couldn't have respined he couldn't have respined we couldn't have respined you couldn't have respined they couldn't have respined	I couldn't have been respining you couldn't have been respining he couldn't have been respining we couldn't have been respining you couldn't have been respining they couldn't have been respining

Interrogative form

Simple form	V-ing form
could I respine? could you respine? could he respine? could we respine? could you respine? could they respine?	could I be respining? could you be respining? could he be respining? could we be respining? could you be respining? could they be respining?
Perfect	V-ing perfect
could I have respined? could you have respined? could he have respined? could we have respined? could you have respined? could they have respined?	could I have been respining? could you have been respining? could he have been respining? could we have been respining? could you have been respining? could they have been respining?

Interro-negative form

Simple form	V-ing form
couldn't I respine? couldn't you respine? couldn't he respine? couldn't we respine? couldn't you respine? couldn't they respine?	couldn't I be respining? couldn't you be respining? couldn't he be respining? couldn't we be respining? couldn't you be respining? couldn't they be respining?
Perfect	V-ing perfect
couldn't I have respined? couldn't you have respined? couldn't he have respined? couldn't we have respined? couldn't you have respined? couldn't they have respined?	couldn't I have been respining? couldn't you have been respining? couldn't he have been respining? couldn't we have been respining? couldn't you have been respining? couldn't they have been respining?