English verb conjugation
COULD PREINSCRIBE

Regular verb: preinscribe - preinscribed - preinscribed

Affirmation

Simple form	V-ing form
I could preinscribe you could preinscribe he could preinscribe we could preinscribe you could preinscribe they could preinscribe	I could be preinscribing you could be preinscribing he could be preinscribing we could be preinscribing you could be preinscribing they could be preinscribing
Perfect	V-ing perfect
I could have preinscribed you could have preinscribed he could have preinscribed we could have preinscribed you could have preinscribed they could have preinscribed	I could have been preinscribing you could have been preinscribing he could have been preinscribing we could have been preinscribing you could have been preinscribing they could have been preinscribing

Negation

Simple form	V-ing form
I couldn't preinscribe you couldn't preinscribe he couldn't preinscribe we couldn't preinscribe you couldn't preinscribe they couldn't preinscribe	I couldn't be preinscribing you couldn't be preinscribing he couldn't be preinscribing we couldn't be preinscribing you couldn't be preinscribing they couldn't be preinscribing
Perfect	V-ing perfect
I couldn't have preinscribed you couldn't have preinscribed he couldn't have preinscribed we couldn't have preinscribed you couldn't have preinscribed they couldn't have preinscribed	I couldn't have been preinscribing you couldn't have been preinscribing he couldn't have been preinscribing we couldn't have been preinscribing you couldn't have been preinscribing they couldn't have been preinscribing

Interrogative form

Simple form	V-ing form
could I preinscribe? could you preinscribe? could he preinscribe? could we preinscribe? could you preinscribe? could they preinscribe?	could I be preinscribing? could you be preinscribing? could he be preinscribing? could we be preinscribing? could you be preinscribing? could they be preinscribing?
Perfect	V-ing perfect
could I have preinscribed? could you have preinscribed? could he have preinscribed? could we have preinscribed? could you have preinscribed? could they have preinscribed?	could I have been preinscribing? could you have been preinscribing? could he have been preinscribing? could we have been preinscribing? could you have been preinscribing? could they have been preinscribing?

Interro-negative form

Simple form	V-ing form
couldn't I preinscribe? couldn't you preinscribe? couldn't he preinscribe? couldn't we preinscribe? couldn't you preinscribe? couldn't they preinscribe?	couldn't I be preinscribing? couldn't you be preinscribing? couldn't he be preinscribing? couldn't we be preinscribing? couldn't you be preinscribing? couldn't they be preinscribing?
Perfect	V-ing perfect
couldn't I have preinscribed? couldn't you have preinscribed? couldn't he have preinscribed? couldn't we have preinscribed? couldn't you have preinscribed? couldn't they have preinscribed?	couldn't I have been preinscribing? couldn't you have been preinscribing? couldn't he have been preinscribing? couldn't we have been preinscribing? couldn't you have been preinscribing? couldn't they have been preinscribing?