may prebill
Verbo regular: prebill - prebilled- prebilled

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I may prebill
you may prebill
he may prebill
we may prebill
you may prebill
they may prebill 	I may be prebilling
you may be prebilling
he may be prebilling
we may be prebilling
you may be prebilling
they may be prebilling	I may have prebilled
you may have prebilled
he may have prebilled
we may have prebilled
you may have prebilled
they may have prebilled	I may have been prebilling
you may have been prebilling
he may have been prebilling
we may have been prebilling
you may have been prebilling
they may have been prebilling	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I may not prebill
you may not prebill
he may not prebill
we may not prebill
you may not prebill
they may not prebill 	I may not be prebilling
you may not be prebilling
he may not be prebilling
we may not be prebilling
you may not be prebilling
they may not be prebilling	I may not have prebilled
you may not have prebilled
he may not have prebilled
we may not have prebilled
you may not have prebilled
they may not have prebilled	I may not have been prebilling
you may not have been prebilling
he may not have been prebilling
we may not have been prebilling
you may not have been prebilling
they may not have been prebilling	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
may I prebill?
may you prebill?
may he prebill?
may we prebill?
may you prebill?
may they prebill? 	may I be prebilling?
may you be prebilling?
may he be prebilling?
may we be prebilling?
may you be prebilling?
may they be prebilling? 	may I have prebilled?
may you have prebilled?
may he have prebilled?
may we have prebilled?
may you have prebilled?
may they have prebilled? 	may I have been prebilling?
may you have been prebilling?
may he have been prebilling?
may we have been prebilling?
may you have been prebilling?
may they have been prebilling? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
may I not prebill?
may you not prebill?
may he not prebill?
may we not prebill?
may you not prebill?
may they not prebill? 	may I not be prebilling?
may you not be prebilling?
may he not be prebilling?
may we not be prebilling?
may you not be prebilling?
may they not be prebilling? 	may I not have prebilled?
may you not have prebilled?
may he not have prebilled?
may we not have prebilled?
may you not have prebilled?
may they not have prebilled? 	may I not have been prebilling?
may you not have been prebilling?
may he not have been prebilling?
may we not have been prebilling?
may you not have been prebilling?
may they not have been prebilling?