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 mustn't forbear you mustn't forbear he mustn't forbear we mustn't forbear you mustn't forbear they mustn't forbear	I mustn't be forbearing you mustn't be forbearing he mustn't be forbearing we mustn't be forbearing you mustn't be forbearing they mustn't be forbearing
Perfect	V-ing perfect
I mustn't have forborne, forborn you mustn't have forborne, forborn he mustn't have forborne, forborn we mustn't have forborne, forborn you mustn't have forborne, forborn they mustn't have forborne, forborn	I mustn't have been forbearing you mustn't have been forbearing he mustn't have been forbearing we mustn't have been forbearing you mustn't have been forbearing they mustn't 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
mustn't I forbear? mustn't you forbear? mustn't he forbear? mustn't we forbear? mustn't you forbear? mustn't they forbear?	mustn't I be forbearing? mustn't you be forbearing? mustn't he be forbearing? mustn't we be forbearing? mustn't you be forbearing? mustn't they be forbearing?
Perfect	V-ing perfect
mustn't I have forborne, forborn? mustn't you have forborne, forborn? mustn't he have forborne, forborn? mustn't we have forborne, forborn? mustn't you have forborne, forborn? mustn't they have forborne, forborn?	mustn't I have been forbearing? mustn't you have been forbearing? mustn't he have been forbearing? mustn't we have been forbearing? mustn't you have been forbearing? mustn't they have been forbearing?