I could extinguish you could extinguish she could extinguish we could extinguish you could extinguish they could extinguish
Forme en V-ing
I could be extinguishing you could be extinguishing she could be extinguishing we could be extinguishing you could be extinguishing they could be extinguishing
Perfect
I could have extinguished you could have extinguished she could have extinguished we could have extinguished you could have extinguished they could have extinguished
Perfect en V-ing
I could have been extinguishing you could have been extinguishing she could have been extinguishing we could have been extinguishing you could have been extinguishing they could have been extinguishing
Négation
Forme simple
I could not extinguish you could not extinguish she could not extinguish we could not extinguish you could not extinguish they could not extinguish
Forme en V-ing
I could not be extinguishing you could not be extinguishing she could not be extinguishing we could not be extinguishing you could not be extinguishing they could not be extinguishing
Perfect
I could not have extinguished you could not have extinguished she could not have extinguished we could not have extinguished you could not have extinguished they could not have extinguished
Perfect en V-ing
I could not have been extinguishing you could not have been extinguishing she could not have been extinguishing we could not have been extinguishing you could not have been extinguishing they could not have been extinguishing
Forme interrogative
Forme simple
could I extinguish? could you extinguish? could she extinguish? could we extinguish? could you extinguish? could they extinguish?
Forme en V-ing
could I be extinguishing? could you be extinguishing? could she be extinguishing? could we be extinguishing? could you be extinguishing? could they be extinguishing?
Perfect
could I have extinguished? could you have extinguished? could she have extinguished? could we have extinguished? could you have extinguished? could they have extinguished?
Perfect en V-ing
could I have been extinguishing? could you have been extinguishing? could she have been extinguishing? could we have been extinguishing? could you have been extinguishing? could they have been extinguishing?
Forme interro-négative
Forme simple
could I not extinguish? could you not extinguish? could she not extinguish? could we not extinguish? could you not extinguish? could they not extinguish?
Forme en V-ing
could I not be extinguishing? could you not be extinguishing? could she not be extinguishing? could we not be extinguishing? could you not be extinguishing? could they not be extinguishing?
Perfect
could I not have extinguished? could you not have extinguished? could she not have extinguished? could we not have extinguished? could you not have extinguished? could they not have extinguished?
Perfect en V-ing
could I not have been extinguishing? could you not have been extinguishing? could she not have been extinguishing? could we not have been extinguishing? could you not have been extinguishing? could they not have been extinguishing?