English verb conjugation
MUST BARREL

Regular verb: barrel - barreled - barreled

Affirmation

Simple form	V-ing form
I must barrel you must barrel he must barrel we must barrel you must barrel they must barrel	I must be barreling you must be barreling he must be barreling we must be barreling you must be barreling they must be barreling
Perfect	V-ing perfect
I must have barreled you must have barreled he must have barreled we must have barreled you must have barreled they must have barreled	I must have been barreling you must have been barreling he must have been barreling we must have been barreling you must have been barreling they must have been barreling

Negation

Simple form	V-ing form
I must not barrel you must not barrel he must not barrel we must not barrel you must not barrel they must not barrel	I must not be barreling you must not be barreling he must not be barreling we must not be barreling you must not be barreling they must not be barreling
Perfect	V-ing perfect
I must not have barreled you must not have barreled he must not have barreled we must not have barreled you must not have barreled they must not have barreled	I must not have been barreling you must not have been barreling he must not have been barreling we must not have been barreling you must not have been barreling they must not have been barreling

Interrogative form

Simple form	V-ing form
must I barrel? must you barrel? must he barrel? must we barrel? must you barrel? must they barrel?	must I be barreling? must you be barreling? must he be barreling? must we be barreling? must you be barreling? must they be barreling?
Perfect	V-ing perfect
must I have barreled? must you have barreled? must he have barreled? must we have barreled? must you have barreled? must they have barreled?	must I have been barreling? must you have been barreling? must he have been barreling? must we have been barreling? must you have been barreling? must they have been barreling?

Interro-negative form

Simple form	V-ing form
must I not barrel? must you not barrel? must he not barrel? must we not barrel? must you not barrel? must they not barrel?	must I not be barreling? must you not be barreling? must he not be barreling? must we not be barreling? must you not be barreling? must they not be barreling?
Perfect	V-ing perfect
must I not have barreled? must you not have barreled? must he not have barreled? must we not have barreled? must you not have barreled? must they not have barreled?	must I not have been barreling? must you not have been barreling? must he not have been barreling? must we not have been barreling? must you not have been barreling? must they not have been barreling?