English verb conjugation
MUST SHEAR

Irregular verb: shear - sheared - sheared, shorn

Affirmation

Simple form	V-ing form
I must shear you must shear he must shear we must shear you must shear they must shear	I must be shearing you must be shearing he must be shearing we must be shearing you must be shearing they must be shearing
Perfect	V-ing perfect
I must have sheared, shorn you must have sheared, shorn he must have sheared, shorn we must have sheared, shorn you must have sheared, shorn they must have sheared, shorn	I must have been shearing you must have been shearing he must have been shearing we must have been shearing you must have been shearing they must have been shearing

Negation

Simple form	V-ing form
I mustn't shear you mustn't shear he mustn't shear we mustn't shear you mustn't shear they mustn't shear	I mustn't be shearing you mustn't be shearing he mustn't be shearing we mustn't be shearing you mustn't be shearing they mustn't be shearing
Perfect	V-ing perfect
I mustn't have sheared, shorn you mustn't have sheared, shorn he mustn't have sheared, shorn we mustn't have sheared, shorn you mustn't have sheared, shorn they mustn't have sheared, shorn	I mustn't have been shearing you mustn't have been shearing he mustn't have been shearing we mustn't have been shearing you mustn't have been shearing they mustn't have been shearing

Interrogative form

Simple form	V-ing form
must I shear? must you shear? must he shear? must we shear? must you shear? must they shear?	must I be shearing? must you be shearing? must he be shearing? must we be shearing? must you be shearing? must they be shearing?
Perfect	V-ing perfect
must I have sheared, shorn? must you have sheared, shorn? must he have sheared, shorn? must we have sheared, shorn? must you have sheared, shorn? must they have sheared, shorn?	must I have been shearing? must you have been shearing? must he have been shearing? must we have been shearing? must you have been shearing? must they have been shearing?

Interro-negative form

Simple form	V-ing form
mustn't I shear? mustn't you shear? mustn't he shear? mustn't we shear? mustn't you shear? mustn't they shear?	mustn't I be shearing? mustn't you be shearing? mustn't he be shearing? mustn't we be shearing? mustn't you be shearing? mustn't they be shearing?
Perfect	V-ing perfect
mustn't I have sheared, shorn? mustn't you have sheared, shorn? mustn't he have sheared, shorn? mustn't we have sheared, shorn? mustn't you have sheared, shorn? mustn't they have sheared, shorn?	mustn't I have been shearing? mustn't you have been shearing? mustn't he have been shearing? mustn't we have been shearing? mustn't you have been shearing? mustn't they have been shearing?