I could expostulate you could expostulate she could expostulate we could expostulate you could expostulate they could expostulate
Forme en V-ing
I could be expostulating you could be expostulating she could be expostulating we could be expostulating you could be expostulating they could be expostulating
Perfect
I could have expostulated you could have expostulated she could have expostulated we could have expostulated you could have expostulated they could have expostulated
Perfect en V-ing
I could have been expostulating you could have been expostulating she could have been expostulating we could have been expostulating you could have been expostulating they could have been expostulating
Négation
Forme simple
I could not expostulate you could not expostulate she could not expostulate we could not expostulate you could not expostulate they could not expostulate
Forme en V-ing
I could not be expostulating you could not be expostulating she could not be expostulating we could not be expostulating you could not be expostulating they could not be expostulating
Perfect
I could not have expostulated you could not have expostulated she could not have expostulated we could not have expostulated you could not have expostulated they could not have expostulated
Perfect en V-ing
I could not have been expostulating you could not have been expostulating she could not have been expostulating we could not have been expostulating you could not have been expostulating they could not have been expostulating
Forme interrogative
Forme simple
could I expostulate? could you expostulate? could she expostulate? could we expostulate? could you expostulate? could they expostulate?
Forme en V-ing
could I be expostulating? could you be expostulating? could she be expostulating? could we be expostulating? could you be expostulating? could they be expostulating?
Perfect
could I have expostulated? could you have expostulated? could she have expostulated? could we have expostulated? could you have expostulated? could they have expostulated?
Perfect en V-ing
could I have been expostulating? could you have been expostulating? could she have been expostulating? could we have been expostulating? could you have been expostulating? could they have been expostulating?
Forme interro-négative
Forme simple
could I not expostulate? could you not expostulate? could she not expostulate? could we not expostulate? could you not expostulate? could they not expostulate?
Forme en V-ing
could I not be expostulating? could you not be expostulating? could she not be expostulating? could we not be expostulating? could you not be expostulating? could they not be expostulating?
Perfect
could I not have expostulated? could you not have expostulated? could she not have expostulated? could we not have expostulated? could you not have expostulated? could they not have expostulated?
Perfect en V-ing
could I not have been expostulating? could you not have been expostulating? could she not have been expostulating? could we not have been expostulating? could you not have been expostulating? could they not have been expostulating?