I must collate you must collate he must collate we must collate you must collate they must collate
V-ing form
I must be collating you must be collating he must be collating we must be collating you must be collating they must be collating
Perfect
I must have collated you must have collated he must have collated we must have collated you must have collated they must have collated
V-ing perfect
I must have been collating you must have been collating he must have been collating we must have been collating you must have been collating they must have been collating
Negation
Simple form
I must not collate you must not collate he must not collate we must not collate you must not collate they must not collate
V-ing form
I must not be collating you must not be collating he must not be collating we must not be collating you must not be collating they must not be collating
Perfect
I must not have collated you must not have collated he must not have collated we must not have collated you must not have collated they must not have collated
V-ing perfect
I must not have been collating you must not have been collating he must not have been collating we must not have been collating you must not have been collating they must not have been collating
Interrogative form
Simple form
must I collate? must you collate? must he collate? must we collate? must you collate? must they collate?
V-ing form
must I be collating? must you be collating? must he be collating? must we be collating? must you be collating? must they be collating?
Perfect
must I have collated? must you have collated? must he have collated? must we have collated? must you have collated? must they have collated?
V-ing perfect
must I have been collating? must you have been collating? must he have been collating? must we have been collating? must you have been collating? must they have been collating?
Interro-negative form
Simple form
must I not collate? must you not collate? must he not collate? must we not collate? must you not collate? must they not collate?
V-ing form
must I not be collating? must you not be collating? must he not be collating? must we not be collating? must you not be collating? must they not be collating?
Perfect
must I not have collated? must you not have collated? must he not have collated? must we not have collated? must you not have collated? must they not have collated?
V-ing perfect
must I not have been collating? must you not have been collating? must he not have been collating? must we not have been collating? must you not have been collating? must they not have been collating?