I could draught-proof you could draught-proof he could draught-proof we could draught-proof you could draught-proof they could draught-proof
Forme en V-ing
I could be draught-proofing you could be draught-proofing he could be draught-proofing we could be draught-proofing you could be draught-proofing they could be draught-proofing
Perfect
I could have draught-proofed you could have draught-proofed he could have draught-proofed we could have draught-proofed you could have draught-proofed they could have draught-proofed
Perfect en V-ing
I could have been draught-proofing you could have been draught-proofing he could have been draught-proofing we could have been draught-proofing you could have been draught-proofing they could have been draught-proofing
Négation
Forme simple
I could not draught-proof you could not draught-proof he could not draught-proof we could not draught-proof you could not draught-proof they could not draught-proof
Forme en V-ing
I could not be draught-proofing you could not be draught-proofing he could not be draught-proofing we could not be draught-proofing you could not be draught-proofing they could not be draught-proofing
Perfect
I could not have draught-proofed you could not have draught-proofed he could not have draught-proofed we could not have draught-proofed you could not have draught-proofed they could not have draught-proofed
Perfect en V-ing
I could not have been draught-proofing you could not have been draught-proofing he could not have been draught-proofing we could not have been draught-proofing you could not have been draught-proofing they could not have been draught-proofing
Forme interrogative
Forme simple
could I draught-proof? could you draught-proof? could he draught-proof? could we draught-proof? could you draught-proof? could they draught-proof?
Forme en V-ing
could I be draught-proofing? could you be draught-proofing? could he be draught-proofing? could we be draught-proofing? could you be draught-proofing? could they be draught-proofing?
Perfect
could I have draught-proofed? could you have draught-proofed? could he have draught-proofed? could we have draught-proofed? could you have draught-proofed? could they have draught-proofed?
Perfect en V-ing
could I have been draught-proofing? could you have been draught-proofing? could he have been draught-proofing? could we have been draught-proofing? could you have been draught-proofing? could they have been draught-proofing?
Forme interro-négative
Forme simple
could I not draught-proof? could you not draught-proof? could he not draught-proof? could we not draught-proof? could you not draught-proof? could they not draught-proof?
Forme en V-ing
could I not be draught-proofing? could you not be draught-proofing? could he not be draught-proofing? could we not be draught-proofing? could you not be draught-proofing? could they not be draught-proofing?
Perfect
could I not have draught-proofed? could you not have draught-proofed? could he not have draught-proofed? could we not have draught-proofed? could you not have draught-proofed? could they not have draught-proofed?
Perfect en V-ing
could I not have been draught-proofing? could you not have been draught-proofing? could he not have been draught-proofing? could we not have been draught-proofing? could you not have been draught-proofing? could they not have been draught-proofing?