I may double-bill you may double-bill he may double-bill we may double-bill you may double-bill they may double-bill
Forme en V-ing
I may be double-billing you may be double-billing he may be double-billing we may be double-billing you may be double-billing they may be double-billing
Perfect
I may have double-billed you may have double-billed he may have double-billed we may have double-billed you may have double-billed they may have double-billed
Perfect en V-ing
I may have been double-billing you may have been double-billing he may have been double-billing we may have been double-billing you may have been double-billing they may have been double-billing
Négation
Forme simple
I may not double-bill you may not double-bill he may not double-bill we may not double-bill you may not double-bill they may not double-bill
Forme en V-ing
I may not be double-billing you may not be double-billing he may not be double-billing we may not be double-billing you may not be double-billing they may not be double-billing
Perfect
I may not have double-billed you may not have double-billed he may not have double-billed we may not have double-billed you may not have double-billed they may not have double-billed
Perfect en V-ing
I may not have been double-billing you may not have been double-billing he may not have been double-billing we may not have been double-billing you may not have been double-billing they may not have been double-billing
Forme interrogative
Forme simple
may I double-bill? may you double-bill? may he double-bill? may we double-bill? may you double-bill? may they double-bill?
Forme en V-ing
may I be double-billing? may you be double-billing? may he be double-billing? may we be double-billing? may you be double-billing? may they be double-billing?
Perfect
may I have double-billed? may you have double-billed? may he have double-billed? may we have double-billed? may you have double-billed? may they have double-billed?
Perfect en V-ing
may I have been double-billing? may you have been double-billing? may he have been double-billing? may we have been double-billing? may you have been double-billing? may they have been double-billing?
Forme interro-négative
Forme simple
may I not double-bill? may you not double-bill? may he not double-bill? may we not double-bill? may you not double-bill? may they not double-bill?
Forme en V-ing
may I not be double-billing? may you not be double-billing? may he not be double-billing? may we not be double-billing? may you not be double-billing? may they not be double-billing?
Perfect
may I not have double-billed? may you not have double-billed? may he not have double-billed? may we not have double-billed? may you not have double-billed? may they not have double-billed?
Perfect en V-ing
may I not have been double-billing? may you not have been double-billing? may he not have been double-billing? may we not have been double-billing? may you not have been double-billing? may they not have been double-billing?