English verb conjugation
MUST RAINPROOF

Regular verb: rainproof - rainproofed - rainproofed

Affirmation

Simple form	V-ing form
I must rainproof you must rainproof he must rainproof we must rainproof you must rainproof they must rainproof	I must be rainproofing you must be rainproofing he must be rainproofing we must be rainproofing you must be rainproofing they must be rainproofing
Perfect	V-ing perfect
I must have rainproofed you must have rainproofed he must have rainproofed we must have rainproofed you must have rainproofed they must have rainproofed	I must have been rainproofing you must have been rainproofing he must have been rainproofing we must have been rainproofing you must have been rainproofing they must have been rainproofing

Negation

Simple form	V-ing form
I mustn't rainproof you mustn't rainproof he mustn't rainproof we mustn't rainproof you mustn't rainproof they mustn't rainproof	I mustn't be rainproofing you mustn't be rainproofing he mustn't be rainproofing we mustn't be rainproofing you mustn't be rainproofing they mustn't be rainproofing
Perfect	V-ing perfect
I mustn't have rainproofed you mustn't have rainproofed he mustn't have rainproofed we mustn't have rainproofed you mustn't have rainproofed they mustn't have rainproofed	I mustn't have been rainproofing you mustn't have been rainproofing he mustn't have been rainproofing we mustn't have been rainproofing you mustn't have been rainproofing they mustn't have been rainproofing

Interrogative form

Simple form	V-ing form
must I rainproof? must you rainproof? must he rainproof? must we rainproof? must you rainproof? must they rainproof?	must I be rainproofing? must you be rainproofing? must he be rainproofing? must we be rainproofing? must you be rainproofing? must they be rainproofing?
Perfect	V-ing perfect
must I have rainproofed? must you have rainproofed? must he have rainproofed? must we have rainproofed? must you have rainproofed? must they have rainproofed?	must I have been rainproofing? must you have been rainproofing? must he have been rainproofing? must we have been rainproofing? must you have been rainproofing? must they have been rainproofing?

Interro-negative form

Simple form	V-ing form
mustn't I rainproof? mustn't you rainproof? mustn't he rainproof? mustn't we rainproof? mustn't you rainproof? mustn't they rainproof?	mustn't I be rainproofing? mustn't you be rainproofing? mustn't he be rainproofing? mustn't we be rainproofing? mustn't you be rainproofing? mustn't they be rainproofing?
Perfect	V-ing perfect
mustn't I have rainproofed? mustn't you have rainproofed? mustn't he have rainproofed? mustn't we have rainproofed? mustn't you have rainproofed? mustn't they have rainproofed?	mustn't I have been rainproofing? mustn't you have been rainproofing? mustn't he have been rainproofing? mustn't we have been rainproofing? mustn't you have been rainproofing? mustn't they have been rainproofing?