can preinform
Regular verb: preinform - preinformed- preinformed

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
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	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 	Perfect 	V-ing perfect 	
I cannot preinform
you cannot preinform
he cannot preinform
we cannot preinform
you cannot preinform
they cannot preinform 	I cannot be preinforming
you cannot be preinforming
he cannot be preinforming
we cannot be preinforming
you cannot be preinforming
they cannot be preinforming	I cannot have preinformed
you cannot have preinformed
he cannot have preinformed
we cannot have preinformed
you cannot have preinformed
they cannot have preinformed	I cannot have been preinforming
you cannot have been preinforming
he cannot have been preinforming
we cannot have been preinforming
you cannot have been preinforming
they cannot have been preinforming	

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