I could portion you could portion he could portion we could portion you could portion they could portion
Forme en V-ing
I could be portioning you could be portioning he could be portioning we could be portioning you could be portioning they could be portioning
Perfect
I could have portioned you could have portioned he could have portioned we could have portioned you could have portioned they could have portioned
Perfect en V-ing
I could have been portioning you could have been portioning he could have been portioning we could have been portioning you could have been portioning they could have been portioning
Négation
Forme simple
I could not portion you could not portion he could not portion we could not portion you could not portion they could not portion
Forme en V-ing
I could not be portioning you could not be portioning he could not be portioning we could not be portioning you could not be portioning they could not be portioning
Perfect
I could not have portioned you could not have portioned he could not have portioned we could not have portioned you could not have portioned they could not have portioned
Perfect en V-ing
I could not have been portioning you could not have been portioning he could not have been portioning we could not have been portioning you could not have been portioning they could not have been portioning
Forme interrogative
Forme simple
could I portion? could you portion? could he portion? could we portion? could you portion? could they portion?
Forme en V-ing
could I be portioning? could you be portioning? could he be portioning? could we be portioning? could you be portioning? could they be portioning?
Perfect
could I have portioned? could you have portioned? could he have portioned? could we have portioned? could you have portioned? could they have portioned?
Perfect en V-ing
could I have been portioning? could you have been portioning? could he have been portioning? could we have been portioning? could you have been portioning? could they have been portioning?
Forme interro-négative
Forme simple
could I not portion? could you not portion? could he not portion? could we not portion? could you not portion? could they not portion?
Forme en V-ing
could I not be portioning? could you not be portioning? could he not be portioning? could we not be portioning? could you not be portioning? could they not be portioning?
Perfect
could I not have portioned? could you not have portioned? could he not have portioned? could we not have portioned? could you not have portioned? could they not have portioned?
Perfect en V-ing
could I not have been portioning? could you not have been portioning? could he not have been portioning? could we not have been portioning? could you not have been portioning? could they not have been portioning?