can prebill
Regular verb: prebill - prebilled- prebilled

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can prebill
you can prebill
he can prebill
we can prebill
you can prebill
they can prebill 	I can be prebilling
you can be prebilling
he can be prebilling
we can be prebilling
you can be prebilling
they can be prebilling	I can have prebilled
you can have prebilled
he can have prebilled
we can have prebilled
you can have prebilled
they can have prebilled	I can have been prebilling
you can have been prebilling
he can have been prebilling
we can have been prebilling
you can have been prebilling
they can have been prebilling	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I cannot prebill
you cannot prebill
he cannot prebill
we cannot prebill
you cannot prebill
they cannot prebill 	I cannot be prebilling
you cannot be prebilling
he cannot be prebilling
we cannot be prebilling
you cannot be prebilling
they cannot be prebilling	I cannot have prebilled
you cannot have prebilled
he cannot have prebilled
we cannot have prebilled
you cannot have prebilled
they cannot have prebilled	I cannot have been prebilling
you cannot have been prebilling
he cannot have been prebilling
we cannot have been prebilling
you cannot have been prebilling
they cannot have been prebilling	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I prebill?
can you prebill?
can he prebill?
can we prebill?
can you prebill?
can they prebill? 	can I be prebilling?
can you be prebilling?
can he be prebilling?
can we be prebilling?
can you be prebilling?
can they be prebilling? 	can I have prebilled?
can you have prebilled?
can he have prebilled?
can we have prebilled?
can you have prebilled?
can they have prebilled? 	can I have been prebilling?
can you have been prebilling?
can he have been prebilling?
can we have been prebilling?
can you have been prebilling?
can they have been prebilling? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I not prebill?
can you not prebill?
can he not prebill?
can we not prebill?
can you not prebill?
can they not prebill? 	can I not be prebilling?
can you not be prebilling?
can he not be prebilling?
can we not be prebilling?
can you not be prebilling?
can they not be prebilling? 	can I not have prebilled?
can you not have prebilled?
can he not have prebilled?
can we not have prebilled?
can you not have prebilled?
can they not have prebilled? 	can I not have been prebilling?
can you not have been prebilling?
can he not have been prebilling?
can we not have been prebilling?
can you not have been prebilling?
can they not have been prebilling?