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 can't prebill
you can't prebill
he can't prebill
we can't prebill
you can't prebill
they can't prebill 	I can't be prebilling
you can't be prebilling
he can't be prebilling
we can't be prebilling
you can't be prebilling
they can't be prebilling	I can't have prebilled
you can't have prebilled
he can't have prebilled
we can't have prebilled
you can't have prebilled
they can't have prebilled	I can't have been prebilling
you can't have been prebilling
he can't have been prebilling
we can't have been prebilling
you can't have been prebilling
they can't 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't I prebill?
can't you prebill?
can't he prebill?
can't we prebill?
can't you prebill?
can't they prebill? 	can't I be prebilling?
can't you be prebilling?
can't he be prebilling?
can't we be prebilling?
can't you be prebilling?
can't they be prebilling? 	can't I have prebilled?
can't you have prebilled?
can't he have prebilled?
can't we have prebilled?
can't you have prebilled?
can't they have prebilled? 	can't I have been prebilling?
can't you have been prebilling?
can't he have been prebilling?
can't we have been prebilling?
can't you have been prebilling?
can't they have been prebilling?