English verb conjugation
CAN DRAUGHT-PROOF

Regular verb: draught-proof - draught-proofed - draught-proofed

Affirmation

Simple form	V-ing form
I can draught-proof you can draught-proof he can draught-proof we can draught-proof you can draught-proof they can draught-proof	I can be draught-proofing you can be draught-proofing he can be draught-proofing we can be draught-proofing you can be draught-proofing they can be draught-proofing
Perfect	V-ing perfect
I can have draught-proofed you can have draught-proofed he can have draught-proofed we can have draught-proofed you can have draught-proofed they can have draught-proofed	I can have been draught-proofing you can have been draught-proofing he can have been draught-proofing we can have been draught-proofing you can have been draught-proofing they can have been draught-proofing

Negation

Simple form	V-ing form
I can't draught-proof you can't draught-proof he can't draught-proof we can't draught-proof you can't draught-proof they can't draught-proof	I can't be draught-proofing you can't be draught-proofing he can't be draught-proofing we can't be draught-proofing you can't be draught-proofing they can't be draught-proofing
Perfect	V-ing perfect
I can't have draught-proofed you can't have draught-proofed he can't have draught-proofed we can't have draught-proofed you can't have draught-proofed they can't have draught-proofed	I can't have been draught-proofing you can't have been draught-proofing he can't have been draught-proofing we can't have been draught-proofing you can't have been draught-proofing they can't have been draught-proofing

Interrogative form

Simple form	V-ing form
can I draught-proof? can you draught-proof? can he draught-proof? can we draught-proof? can you draught-proof? can they draught-proof?	can I be draught-proofing? can you be draught-proofing? can he be draught-proofing? can we be draught-proofing? can you be draught-proofing? can they be draught-proofing?
Perfect	V-ing perfect
can I have draught-proofed? can you have draught-proofed? can he have draught-proofed? can we have draught-proofed? can you have draught-proofed? can they have draught-proofed?	can I have been draught-proofing? can you have been draught-proofing? can he have been draught-proofing? can we have been draught-proofing? can you have been draught-proofing? can they have been draught-proofing?

Interro-negative form

Simple form	V-ing form
can't I draught-proof? can't you draught-proof? can't he draught-proof? can't we draught-proof? can't you draught-proof? can't they draught-proof?	can't I be draught-proofing? can't you be draught-proofing? can't he be draught-proofing? can't we be draught-proofing? can't you be draught-proofing? can't they be draught-proofing?
Perfect	V-ing perfect
can't I have draught-proofed? can't you have draught-proofed? can't he have draught-proofed? can't we have draught-proofed? can't you have draught-proofed? can't they have draught-proofed?	can't I have been draught-proofing? can't you have been draught-proofing? can't he have been draught-proofing? can't we have been draught-proofing? can't you have been draught-proofing? can't they have been draught-proofing?