English verb conjugation
MUST DRAUGHT-PROOF

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

Affirmation

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

Negation

Simple form	V-ing form
I must not draught-proof you must not draught-proof she must not draught-proof we must not draught-proof you must not draught-proof they must not draught-proof	I must not be draught-proofing you must not be draught-proofing she must not be draught-proofing we must not be draught-proofing you must not be draught-proofing they must not be draught-proofing
Perfect	V-ing perfect
I must not have draught-proofed you must not have draught-proofed she must not have draught-proofed we must not have draught-proofed you must not have draught-proofed they must not have draught-proofed	I must not have been draught-proofing you must not have been draught-proofing she must not have been draught-proofing we must not have been draught-proofing you must not have been draught-proofing they must not have been draught-proofing

Interrogative form

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

Interro-negative form

Simple form	V-ing form
must I not draught-proof? must you not draught-proof? must she not draught-proof? must we not draught-proof? must you not draught-proof? must they not draught-proof?	must I not be draught-proofing? must you not be draught-proofing? must she not be draught-proofing? must we not be draught-proofing? must you not be draught-proofing? must they not be draught-proofing?
Perfect	V-ing perfect
must I not have draught-proofed? must you not have draught-proofed? must she not have draught-proofed? must we not have draught-proofed? must you not have draught-proofed? must they not have draught-proofed?	must I not have been draught-proofing? must you not have been draught-proofing? must she not have been draught-proofing? must we not have been draught-proofing? must you not have been draught-proofing? must they not have been draught-proofing?