I can bill you can bill he can bill we can bill you can bill they can bill
Forma con V-ing
I can be billing you can be billing he can be billing we can be billing you can be billing they can be billing
Perfetto
I can have billed you can have billed he can have billed we can have billed you can have billed they can have billed
Perfetto con V-ing
I can have been billing you can have been billing he can have been billing we can have been billing you can have been billing they can have been billing
Negazione
Forma semplice
I cannot bill you cannot bill he cannot bill we cannot bill you cannot bill they cannot bill
Forma con V-ing
I cannot be billing you cannot be billing he cannot be billing we cannot be billing you cannot be billing they cannot be billing
Perfetto
I cannot have billed you cannot have billed he cannot have billed we cannot have billed you cannot have billed they cannot have billed
Perfetto con V-ing
I cannot have been billing you cannot have been billing he cannot have been billing we cannot have been billing you cannot have been billing they cannot have been billing
Forma interrogativa
Forma semplice
can I bill? can you bill? can he bill? can we bill? can you bill? can they bill?
Forma con V-ing
can I be billing? can you be billing? can he be billing? can we be billing? can you be billing? can they be billing?
Perfetto
can I have billed? can you have billed? can he have billed? can we have billed? can you have billed? can they have billed?
Perfetto con V-ing
can I have been billing? can you have been billing? can he have been billing? can we have been billing? can you have been billing? can they have been billing?
Forma interro-negativa
Forma semplice
can I not bill? can you not bill? can he not bill? can we not bill? can you not bill? can they not bill?
Forma con V-ing
can I not be billing? can you not be billing? can he not be billing? can we not be billing? can you not be billing? can they not be billing?
Perfetto
can I not have billed? can you not have billed? can he not have billed? can we not have billed? can you not have billed? can they not have billed?
Perfetto con V-ing
can I not have been billing? can you not have been billing? can he not have been billing? can we not have been billing? can you not have been billing? can they not have been billing?