English verb conjugation
MUST SCRUM

Regular verb: scrum - scrumed - scrumed

Affirmation

Simple form	V-ing form
I must scrum you must scrum he must scrum we must scrum you must scrum they must scrum	I must be scruming you must be scruming he must be scruming we must be scruming you must be scruming they must be scruming
Perfect	V-ing perfect
I must have scrumed you must have scrumed he must have scrumed we must have scrumed you must have scrumed they must have scrumed	I must have been scruming you must have been scruming he must have been scruming we must have been scruming you must have been scruming they must have been scruming

Negation

Simple form	V-ing form
I mustn't scrum you mustn't scrum he mustn't scrum we mustn't scrum you mustn't scrum they mustn't scrum	I mustn't be scruming you mustn't be scruming he mustn't be scruming we mustn't be scruming you mustn't be scruming they mustn't be scruming
Perfect	V-ing perfect
I mustn't have scrumed you mustn't have scrumed he mustn't have scrumed we mustn't have scrumed you mustn't have scrumed they mustn't have scrumed	I mustn't have been scruming you mustn't have been scruming he mustn't have been scruming we mustn't have been scruming you mustn't have been scruming they mustn't have been scruming

Interrogative form

Simple form	V-ing form
must I scrum? must you scrum? must he scrum? must we scrum? must you scrum? must they scrum?	must I be scruming? must you be scruming? must he be scruming? must we be scruming? must you be scruming? must they be scruming?
Perfect	V-ing perfect
must I have scrumed? must you have scrumed? must he have scrumed? must we have scrumed? must you have scrumed? must they have scrumed?	must I have been scruming? must you have been scruming? must he have been scruming? must we have been scruming? must you have been scruming? must they have been scruming?

Interro-negative form

Simple form	V-ing form
mustn't I scrum? mustn't you scrum? mustn't he scrum? mustn't we scrum? mustn't you scrum? mustn't they scrum?	mustn't I be scruming? mustn't you be scruming? mustn't he be scruming? mustn't we be scruming? mustn't you be scruming? mustn't they be scruming?
Perfect	V-ing perfect
mustn't I have scrumed? mustn't you have scrumed? mustn't he have scrumed? mustn't we have scrumed? mustn't you have scrumed? mustn't they have scrumed?	mustn't I have been scruming? mustn't you have been scruming? mustn't he have been scruming? mustn't we have been scruming? mustn't you have been scruming? mustn't they have been scruming?