English verb conjugation
COULD WHINE

Regular verb: whine - whined - whined

Affirmation

Simple form	V-ing form
I could whine you could whine he could whine we could whine you could whine they could whine	I could be whining you could be whining he could be whining we could be whining you could be whining they could be whining
Perfect	V-ing perfect
I could have whined you could have whined he could have whined we could have whined you could have whined they could have whined	I could have been whining you could have been whining he could have been whining we could have been whining you could have been whining they could have been whining

Negation

Simple form	V-ing form
I couldn't whine you couldn't whine he couldn't whine we couldn't whine you couldn't whine they couldn't whine	I couldn't be whining you couldn't be whining he couldn't be whining we couldn't be whining you couldn't be whining they couldn't be whining
Perfect	V-ing perfect
I couldn't have whined you couldn't have whined he couldn't have whined we couldn't have whined you couldn't have whined they couldn't have whined	I couldn't have been whining you couldn't have been whining he couldn't have been whining we couldn't have been whining you couldn't have been whining they couldn't have been whining

Interrogative form

Simple form	V-ing form
could I whine? could you whine? could he whine? could we whine? could you whine? could they whine?	could I be whining? could you be whining? could he be whining? could we be whining? could you be whining? could they be whining?
Perfect	V-ing perfect
could I have whined? could you have whined? could he have whined? could we have whined? could you have whined? could they have whined?	could I have been whining? could you have been whining? could he have been whining? could we have been whining? could you have been whining? could they have been whining?

Interro-negative form

Simple form	V-ing form
couldn't I whine? couldn't you whine? couldn't he whine? couldn't we whine? couldn't you whine? couldn't they whine?	couldn't I be whining? couldn't you be whining? couldn't he be whining? couldn't we be whining? couldn't you be whining? couldn't they be whining?
Perfect	V-ing perfect
couldn't I have whined? couldn't you have whined? couldn't he have whined? couldn't we have whined? couldn't you have whined? couldn't they have whined?	couldn't I have been whining? couldn't you have been whining? couldn't he have been whining? couldn't we have been whining? couldn't you have been whining? couldn't they have been whining?