English verb conjugation
MUST FORBEAR

Irregular verb: forbear - forbore - forborne, forborn

Affirmation

Simple form	V-ing form
I must forbear you must forbear he must forbear we must forbear you must forbear they must forbear	I must be forbearing you must be forbearing he must be forbearing we must be forbearing you must be forbearing they must be forbearing
Perfect	V-ing perfect
I must have forborne, forborn you must have forborne, forborn he must have forborne, forborn we must have forborne, forborn you must have forborne, forborn they must have forborne, forborn	I must have been forbearing you must have been forbearing he must have been forbearing we must have been forbearing you must have been forbearing they must have been forbearing

Negation

Simple form	V-ing form
I must not forbear you must not forbear he must not forbear we must not forbear you must not forbear they must not forbear	I must not be forbearing you must not be forbearing he must not be forbearing we must not be forbearing you must not be forbearing they must not be forbearing
Perfect	V-ing perfect
I must not have forborne, forborn you must not have forborne, forborn he must not have forborne, forborn we must not have forborne, forborn you must not have forborne, forborn they must not have forborne, forborn	I must not have been forbearing you must not have been forbearing he must not have been forbearing we must not have been forbearing you must not have been forbearing they must not have been forbearing

Interrogative form

Simple form	V-ing form
must I forbear? must you forbear? must he forbear? must we forbear? must you forbear? must they forbear?	must I be forbearing? must you be forbearing? must he be forbearing? must we be forbearing? must you be forbearing? must they be forbearing?
Perfect	V-ing perfect
must I have forborne, forborn? must you have forborne, forborn? must he have forborne, forborn? must we have forborne, forborn? must you have forborne, forborn? must they have forborne, forborn?	must I have been forbearing? must you have been forbearing? must he have been forbearing? must we have been forbearing? must you have been forbearing? must they have been forbearing?

Interro-negative form

Simple form	V-ing form
must I not forbear? must you not forbear? must he not forbear? must we not forbear? must you not forbear? must they not forbear?	must I not be forbearing? must you not be forbearing? must he not be forbearing? must we not be forbearing? must you not be forbearing? must they not be forbearing?
Perfect	V-ing perfect
must I not have forborne, forborn? must you not have forborne, forborn? must he not have forborne, forborn? must we not have forborne, forborn? must you not have forborne, forborn? must they not have forborne, forborn?	must I not have been forbearing? must you not have been forbearing? must he not have been forbearing? must we not have been forbearing? must you not have been forbearing? must they not have been forbearing?