Coniugazione del verbo inglese
COULD BILL

Verbo regolare: bill - billed - billed

Affermazione

Forma semplice	Forma con V-ing
I could bill you could bill he could bill we could bill you could bill they could bill	I could be billing you could be billing he could be billing we could be billing you could be billing they could be billing
Perfetto	Perfetto con V-ing
I could have billed you could have billed he could have billed we could have billed you could have billed they could have billed	I could have been billing you could have been billing he could have been billing we could have been billing you could have been billing they could have been billing

Negazione

Forma semplice	Forma con V-ing
I couldn't bill you couldn't bill he couldn't bill we couldn't bill you couldn't bill they couldn't bill	I couldn't be billing you couldn't be billing he couldn't be billing we couldn't be billing you couldn't be billing they couldn't be billing
Perfetto	Perfetto con V-ing
I couldn't have billed you couldn't have billed he couldn't have billed we couldn't have billed you couldn't have billed they couldn't have billed	I couldn't have been billing you couldn't have been billing he couldn't have been billing we couldn't have been billing you couldn't have been billing they couldn't have been billing

Forma interrogativa

Forma semplice	Forma con V-ing
could I bill? could you bill? could he bill? could we bill? could you bill? could they bill?	could I be billing? could you be billing? could he be billing? could we be billing? could you be billing? could they be billing?
Perfetto	Perfetto con V-ing
could I have billed? could you have billed? could he have billed? could we have billed? could you have billed? could they have billed?	could I have been billing? could you have been billing? could he have been billing? could we have been billing? could you have been billing? could they have been billing?

Forma interro-negativa

Forma semplice	Forma con V-ing
couldn't I bill? couldn't you bill? couldn't he bill? couldn't we bill? couldn't you bill? couldn't they bill?	couldn't I be billing? couldn't you be billing? couldn't he be billing? couldn't we be billing? couldn't you be billing? couldn't they be billing?
Perfetto	Perfetto con V-ing
couldn't I have billed? couldn't you have billed? couldn't he have billed? couldn't we have billed? couldn't you have billed? couldn't they have billed?	couldn't I have been billing? couldn't you have been billing? couldn't he have been billing? couldn't we have been billing? couldn't you have been billing? couldn't they have been billing?