English verb conjugation
CAN PREINFORM

Regular verb: preinform - preinformed - preinformed

Affirmation

Simple form	V-ing form
I can preinform you can preinform he can preinform we can preinform you can preinform they can preinform	I can be preinforming you can be preinforming he can be preinforming we can be preinforming you can be preinforming they can be preinforming
Perfect	V-ing perfect
I can have preinformed you can have preinformed he can have preinformed we can have preinformed you can have preinformed they can have preinformed	I can have been preinforming you can have been preinforming he can have been preinforming we can have been preinforming you can have been preinforming they can have been preinforming

Negation

Simple form	V-ing form
I can't preinform you can't preinform he can't preinform we can't preinform you can't preinform they can't preinform	I can't be preinforming you can't be preinforming he can't be preinforming we can't be preinforming you can't be preinforming they can't be preinforming
Perfect	V-ing perfect
I can't have preinformed you can't have preinformed he can't have preinformed we can't have preinformed you can't have preinformed they can't have preinformed	I can't have been preinforming you can't have been preinforming he can't have been preinforming we can't have been preinforming you can't have been preinforming they can't have been preinforming

Interrogative form

Simple form	V-ing form
can I preinform? can you preinform? can he preinform? can we preinform? can you preinform? can they preinform?	can I be preinforming? can you be preinforming? can he be preinforming? can we be preinforming? can you be preinforming? can they be preinforming?
Perfect	V-ing perfect
can I have preinformed? can you have preinformed? can he have preinformed? can we have preinformed? can you have preinformed? can they have preinformed?	can I have been preinforming? can you have been preinforming? can he have been preinforming? can we have been preinforming? can you have been preinforming? can they have been preinforming?

Interro-negative form

Simple form	V-ing form
can't I preinform? can't you preinform? can't he preinform? can't we preinform? can't you preinform? can't they preinform?	can't I be preinforming? can't you be preinforming? can't he be preinforming? can't we be preinforming? can't you be preinforming? can't they be preinforming?
Perfect	V-ing perfect
can't I have preinformed? can't you have preinformed? can't he have preinformed? can't we have preinformed? can't you have preinformed? can't they have preinformed?	can't I have been preinforming? can't you have been preinforming? can't he have been preinforming? can't we have been preinforming? can't you have been preinforming? can't they have been preinforming?