English verb conjugation
MUST NECK-REIN

Regular verb: neck-rein - neck-reined - neck-reined

Affirmation

Simple form	V-ing form
I must neck-rein you must neck-rein he must neck-rein we must neck-rein you must neck-rein they must neck-rein	I must be neck-reining you must be neck-reining he must be neck-reining we must be neck-reining you must be neck-reining they must be neck-reining
Perfect	V-ing perfect
I must have neck-reined you must have neck-reined he must have neck-reined we must have neck-reined you must have neck-reined they must have neck-reined	I must have been neck-reining you must have been neck-reining he must have been neck-reining we must have been neck-reining you must have been neck-reining they must have been neck-reining

Negation

Simple form	V-ing form
I mustn't neck-rein you mustn't neck-rein he mustn't neck-rein we mustn't neck-rein you mustn't neck-rein they mustn't neck-rein	I mustn't be neck-reining you mustn't be neck-reining he mustn't be neck-reining we mustn't be neck-reining you mustn't be neck-reining they mustn't be neck-reining
Perfect	V-ing perfect
I mustn't have neck-reined you mustn't have neck-reined he mustn't have neck-reined we mustn't have neck-reined you mustn't have neck-reined they mustn't have neck-reined	I mustn't have been neck-reining you mustn't have been neck-reining he mustn't have been neck-reining we mustn't have been neck-reining you mustn't have been neck-reining they mustn't have been neck-reining

Interrogative form

Simple form	V-ing form
must I neck-rein? must you neck-rein? must he neck-rein? must we neck-rein? must you neck-rein? must they neck-rein?	must I be neck-reining? must you be neck-reining? must he be neck-reining? must we be neck-reining? must you be neck-reining? must they be neck-reining?
Perfect	V-ing perfect
must I have neck-reined? must you have neck-reined? must he have neck-reined? must we have neck-reined? must you have neck-reined? must they have neck-reined?	must I have been neck-reining? must you have been neck-reining? must he have been neck-reining? must we have been neck-reining? must you have been neck-reining? must they have been neck-reining?

Interro-negative form

Simple form	V-ing form
mustn't I neck-rein? mustn't you neck-rein? mustn't he neck-rein? mustn't we neck-rein? mustn't you neck-rein? mustn't they neck-rein?	mustn't I be neck-reining? mustn't you be neck-reining? mustn't he be neck-reining? mustn't we be neck-reining? mustn't you be neck-reining? mustn't they be neck-reining?
Perfect	V-ing perfect
mustn't I have neck-reined? mustn't you have neck-reined? mustn't he have neck-reined? mustn't we have neck-reined? mustn't you have neck-reined? mustn't they have neck-reined?	mustn't I have been neck-reining? mustn't you have been neck-reining? mustn't he have been neck-reining? mustn't we have been neck-reining? mustn't you have been neck-reining? mustn't they have been neck-reining?