I must bifurcate you must bifurcate he must bifurcate we must bifurcate you must bifurcate they must bifurcate
V-ing form
I must be bifurcating you must be bifurcating he must be bifurcating we must be bifurcating you must be bifurcating they must be bifurcating
Perfect
I must have bifurcated you must have bifurcated he must have bifurcated we must have bifurcated you must have bifurcated they must have bifurcated
V-ing perfect
I must have been bifurcating you must have been bifurcating he must have been bifurcating we must have been bifurcating you must have been bifurcating they must have been bifurcating
Negation
Simple form
I must not bifurcate you must not bifurcate he must not bifurcate we must not bifurcate you must not bifurcate they must not bifurcate
V-ing form
I must not be bifurcating you must not be bifurcating he must not be bifurcating we must not be bifurcating you must not be bifurcating they must not be bifurcating
Perfect
I must not have bifurcated you must not have bifurcated he must not have bifurcated we must not have bifurcated you must not have bifurcated they must not have bifurcated
V-ing perfect
I must not have been bifurcating you must not have been bifurcating he must not have been bifurcating we must not have been bifurcating you must not have been bifurcating they must not have been bifurcating
Interrogative form
Simple form
must I bifurcate? must you bifurcate? must he bifurcate? must we bifurcate? must you bifurcate? must they bifurcate?
V-ing form
must I be bifurcating? must you be bifurcating? must he be bifurcating? must we be bifurcating? must you be bifurcating? must they be bifurcating?
Perfect
must I have bifurcated? must you have bifurcated? must he have bifurcated? must we have bifurcated? must you have bifurcated? must they have bifurcated?
V-ing perfect
must I have been bifurcating? must you have been bifurcating? must he have been bifurcating? must we have been bifurcating? must you have been bifurcating? must they have been bifurcating?
Interro-negative form
Simple form
must I not bifurcate? must you not bifurcate? must he not bifurcate? must we not bifurcate? must you not bifurcate? must they not bifurcate?
V-ing form
must I not be bifurcating? must you not be bifurcating? must he not be bifurcating? must we not be bifurcating? must you not be bifurcating? must they not be bifurcating?
Perfect
must I not have bifurcated? must you not have bifurcated? must he not have bifurcated? must we not have bifurcated? must you not have bifurcated? must they not have bifurcated?
V-ing perfect
must I not have been bifurcating? must you not have been bifurcating? must he not have been bifurcating? must we not have been bifurcating? must you not have been bifurcating? must they not have been bifurcating?