I must ratify you must ratify he must ratify we must ratify you must ratify they must ratify
V-ing form
I must be ratifying you must be ratifying he must be ratifying we must be ratifying you must be ratifying they must be ratifying
Perfect
I must have ratified you must have ratified he must have ratified we must have ratified you must have ratified they must have ratified
V-ing perfect
I must have been ratifying you must have been ratifying he must have been ratifying we must have been ratifying you must have been ratifying they must have been ratifying
Negation
Simple form
I must not ratify you must not ratify he must not ratify we must not ratify you must not ratify they must not ratify
V-ing form
I must not be ratifying you must not be ratifying he must not be ratifying we must not be ratifying you must not be ratifying they must not be ratifying
Perfect
I must not have ratified you must not have ratified he must not have ratified we must not have ratified you must not have ratified they must not have ratified
V-ing perfect
I must not have been ratifying you must not have been ratifying he must not have been ratifying we must not have been ratifying you must not have been ratifying they must not have been ratifying
Interrogative form
Simple form
must I ratify? must you ratify? must he ratify? must we ratify? must you ratify? must they ratify?
V-ing form
must I be ratifying? must you be ratifying? must he be ratifying? must we be ratifying? must you be ratifying? must they be ratifying?
Perfect
must I have ratified? must you have ratified? must he have ratified? must we have ratified? must you have ratified? must they have ratified?
V-ing perfect
must I have been ratifying? must you have been ratifying? must he have been ratifying? must we have been ratifying? must you have been ratifying? must they have been ratifying?
Interro-negative form
Simple form
must I not ratify? must you not ratify? must he not ratify? must we not ratify? must you not ratify? must they not ratify?
V-ing form
must I not be ratifying? must you not be ratifying? must he not be ratifying? must we not be ratifying? must you not be ratifying? must they not be ratifying?
Perfect
must I not have ratified? must you not have ratified? must he not have ratified? must we not have ratified? must you not have ratified? must they not have ratified?
V-ing perfect
must I not have been ratifying? must you not have been ratifying? must he not have been ratifying? must we not have been ratifying? must you not have been ratifying? must they not have been ratifying?