I may bill you may bill he may bill we may bill you may bill they may bill
Forma con V-ing
I may be billing you may be billing he may be billing we may be billing you may be billing they may be billing
Perfecto
I may have billed you may have billed he may have billed we may have billed you may have billed they may have billed
Perfecto con V-ing
I may have been billing you may have been billing he may have been billing we may have been billing you may have been billing they may have been billing
Negación
Forma simple
I mayn't bill you mayn't bill he mayn't bill we mayn't bill you mayn't bill they mayn't bill
Forma con V-ing
I mayn't be billing you mayn't be billing he mayn't be billing we mayn't be billing you mayn't be billing they mayn't be billing
Perfecto
I mayn't have billed you mayn't have billed he mayn't have billed we mayn't have billed you mayn't have billed they mayn't have billed
Perfecto con V-ing
I mayn't have been billing you mayn't have been billing he mayn't have been billing we mayn't have been billing you mayn't have been billing they mayn't have been billing
Forma interrogativa
Forma simple
may I bill? may you bill? may he bill? may we bill? may you bill? may they bill?
Forma con V-ing
may I be billing? may you be billing? may he be billing? may we be billing? may you be billing? may they be billing?
Perfecto
may I have billed? may you have billed? may he have billed? may we have billed? may you have billed? may they have billed?
Perfecto con V-ing
may I have been billing? may you have been billing? may he have been billing? may we have been billing? may you have been billing? may they have been billing?
Forma interro-negativa
Forma simple
mayn't I bill? mayn't you bill? mayn't he bill? mayn't we bill? mayn't you bill? mayn't they bill?
Forma con V-ing
mayn't I be billing? mayn't you be billing? mayn't he be billing? mayn't we be billing? mayn't you be billing? mayn't they be billing?
Perfecto
mayn't I have billed? mayn't you have billed? mayn't he have billed? mayn't we have billed? mayn't you have billed? mayn't they have billed?
Perfecto con V-ing
mayn't I have been billing? mayn't you have been billing? mayn't he have been billing? mayn't we have been billing? mayn't you have been billing? mayn't they have been billing?