English verb conjugation
COULD INTERTWINE

Regular verb: intertwine - intertwined - intertwined

Affirmation

Simple form	V-ing form
I could intertwine you could intertwine he could intertwine we could intertwine you could intertwine they could intertwine	I could be intertwining you could be intertwining he could be intertwining we could be intertwining you could be intertwining they could be intertwining
Perfect	V-ing perfect
I could have intertwined you could have intertwined he could have intertwined we could have intertwined you could have intertwined they could have intertwined	I could have been intertwining you could have been intertwining he could have been intertwining we could have been intertwining you could have been intertwining they could have been intertwining

Negation

Simple form	V-ing form
I couldn't intertwine you couldn't intertwine he couldn't intertwine we couldn't intertwine you couldn't intertwine they couldn't intertwine	I couldn't be intertwining you couldn't be intertwining he couldn't be intertwining we couldn't be intertwining you couldn't be intertwining they couldn't be intertwining
Perfect	V-ing perfect
I couldn't have intertwined you couldn't have intertwined he couldn't have intertwined we couldn't have intertwined you couldn't have intertwined they couldn't have intertwined	I couldn't have been intertwining you couldn't have been intertwining he couldn't have been intertwining we couldn't have been intertwining you couldn't have been intertwining they couldn't have been intertwining

Interrogative form

Simple form	V-ing form
could I intertwine? could you intertwine? could he intertwine? could we intertwine? could you intertwine? could they intertwine?	could I be intertwining? could you be intertwining? could he be intertwining? could we be intertwining? could you be intertwining? could they be intertwining?
Perfect	V-ing perfect
could I have intertwined? could you have intertwined? could he have intertwined? could we have intertwined? could you have intertwined? could they have intertwined?	could I have been intertwining? could you have been intertwining? could he have been intertwining? could we have been intertwining? could you have been intertwining? could they have been intertwining?

Interro-negative form

Simple form	V-ing form
couldn't I intertwine? couldn't you intertwine? couldn't he intertwine? couldn't we intertwine? couldn't you intertwine? couldn't they intertwine?	couldn't I be intertwining? couldn't you be intertwining? couldn't he be intertwining? couldn't we be intertwining? couldn't you be intertwining? couldn't they be intertwining?
Perfect	V-ing perfect
couldn't I have intertwined? couldn't you have intertwined? couldn't he have intertwined? couldn't we have intertwined? couldn't you have intertwined? couldn't they have intertwined?	couldn't I have been intertwining? couldn't you have been intertwining? couldn't he have been intertwining? couldn't we have been intertwining? couldn't you have been intertwining? couldn't they have been intertwining?