English verb conjugation
COULD INSTANTIATE

Regular verb: instantiate - instantiated - instantiated

Affirmation

Simple form	V-ing form
I could instantiate you could instantiate he could instantiate we could instantiate you could instantiate they could instantiate	I could be instantiating you could be instantiating he could be instantiating we could be instantiating you could be instantiating they could be instantiating
Perfect	V-ing perfect
I could have instantiated you could have instantiated he could have instantiated we could have instantiated you could have instantiated they could have instantiated	I could have been instantiating you could have been instantiating he could have been instantiating we could have been instantiating you could have been instantiating they could have been instantiating

Negation

Simple form	V-ing form
I couldn't instantiate you couldn't instantiate he couldn't instantiate we couldn't instantiate you couldn't instantiate they couldn't instantiate	I couldn't be instantiating you couldn't be instantiating he couldn't be instantiating we couldn't be instantiating you couldn't be instantiating they couldn't be instantiating
Perfect	V-ing perfect
I couldn't have instantiated you couldn't have instantiated he couldn't have instantiated we couldn't have instantiated you couldn't have instantiated they couldn't have instantiated	I couldn't have been instantiating you couldn't have been instantiating he couldn't have been instantiating we couldn't have been instantiating you couldn't have been instantiating they couldn't have been instantiating

Interrogative form

Simple form	V-ing form
could I instantiate? could you instantiate? could he instantiate? could we instantiate? could you instantiate? could they instantiate?	could I be instantiating? could you be instantiating? could he be instantiating? could we be instantiating? could you be instantiating? could they be instantiating?
Perfect	V-ing perfect
could I have instantiated? could you have instantiated? could he have instantiated? could we have instantiated? could you have instantiated? could they have instantiated?	could I have been instantiating? could you have been instantiating? could he have been instantiating? could we have been instantiating? could you have been instantiating? could they have been instantiating?

Interro-negative form

Simple form	V-ing form
couldn't I instantiate? couldn't you instantiate? couldn't he instantiate? couldn't we instantiate? couldn't you instantiate? couldn't they instantiate?	couldn't I be instantiating? couldn't you be instantiating? couldn't he be instantiating? couldn't we be instantiating? couldn't you be instantiating? couldn't they be instantiating?
Perfect	V-ing perfect
couldn't I have instantiated? couldn't you have instantiated? couldn't he have instantiated? couldn't we have instantiated? couldn't you have instantiated? couldn't they have instantiated?	couldn't I have been instantiating? couldn't you have been instantiating? couldn't he have been instantiating? couldn't we have been instantiating? couldn't you have been instantiating? couldn't they have been instantiating?