English verb conjugation
COULD INSTANCE

Regular verb: instance - instanced - instanced

Affirmation

Simple form	V-ing form
I could instance you could instance he could instance we could instance you could instance they could instance	I could be instancing you could be instancing he could be instancing we could be instancing you could be instancing they could be instancing
Perfect	V-ing perfect
I could have instanced you could have instanced he could have instanced we could have instanced you could have instanced they could have instanced	I could have been instancing you could have been instancing he could have been instancing we could have been instancing you could have been instancing they could have been instancing

Negation

Simple form	V-ing form
I couldn't instance you couldn't instance he couldn't instance we couldn't instance you couldn't instance they couldn't instance	I couldn't be instancing you couldn't be instancing he couldn't be instancing we couldn't be instancing you couldn't be instancing they couldn't be instancing
Perfect	V-ing perfect
I couldn't have instanced you couldn't have instanced he couldn't have instanced we couldn't have instanced you couldn't have instanced they couldn't have instanced	I couldn't have been instancing you couldn't have been instancing he couldn't have been instancing we couldn't have been instancing you couldn't have been instancing they couldn't have been instancing

Interrogative form

Simple form	V-ing form
could I instance? could you instance? could he instance? could we instance? could you instance? could they instance?	could I be instancing? could you be instancing? could he be instancing? could we be instancing? could you be instancing? could they be instancing?
Perfect	V-ing perfect
could I have instanced? could you have instanced? could he have instanced? could we have instanced? could you have instanced? could they have instanced?	could I have been instancing? could you have been instancing? could he have been instancing? could we have been instancing? could you have been instancing? could they have been instancing?

Interro-negative form

Simple form	V-ing form
couldn't I instance? couldn't you instance? couldn't he instance? couldn't we instance? couldn't you instance? couldn't they instance?	couldn't I be instancing? couldn't you be instancing? couldn't he be instancing? couldn't we be instancing? couldn't you be instancing? couldn't they be instancing?
Perfect	V-ing perfect
couldn't I have instanced? couldn't you have instanced? couldn't he have instanced? couldn't we have instanced? couldn't you have instanced? couldn't they have instanced?	couldn't I have been instancing? couldn't you have been instancing? couldn't he have been instancing? couldn't we have been instancing? couldn't you have been instancing? couldn't they have been instancing?