I must blear you must blear she must blear we must blear you must blear they must blear
V-ing form
I must be blearing you must be blearing she must be blearing we must be blearing you must be blearing they must be blearing
Perfect
I must have bleared you must have bleared she must have bleared we must have bleared you must have bleared they must have bleared
V-ing perfect
I must have been blearing you must have been blearing she must have been blearing we must have been blearing you must have been blearing they must have been blearing
Negation
Simple form
I must not blear you must not blear she must not blear we must not blear you must not blear they must not blear
V-ing form
I must not be blearing you must not be blearing she must not be blearing we must not be blearing you must not be blearing they must not be blearing
Perfect
I must not have bleared you must not have bleared she must not have bleared we must not have bleared you must not have bleared they must not have bleared
V-ing perfect
I must not have been blearing you must not have been blearing she must not have been blearing we must not have been blearing you must not have been blearing they must not have been blearing
Interrogative form
Simple form
must I blear? must you blear? must she blear? must we blear? must you blear? must they blear?
V-ing form
must I be blearing? must you be blearing? must she be blearing? must we be blearing? must you be blearing? must they be blearing?
Perfect
must I have bleared? must you have bleared? must she have bleared? must we have bleared? must you have bleared? must they have bleared?
V-ing perfect
must I have been blearing? must you have been blearing? must she have been blearing? must we have been blearing? must you have been blearing? must they have been blearing?
Interro-negative form
Simple form
must I not blear? must you not blear? must she not blear? must we not blear? must you not blear? must they not blear?
V-ing form
must I not be blearing? must you not be blearing? must she not be blearing? must we not be blearing? must you not be blearing? must they not be blearing?
Perfect
must I not have bleared? must you not have bleared? must she not have bleared? must we not have bleared? must you not have bleared? must they not have bleared?
V-ing perfect
must I not have been blearing? must you not have been blearing? must she not have been blearing? must we not have been blearing? must you not have been blearing? must they not have been blearing?