I must commutate you must commutate he must commutate we must commutate you must commutate they must commutate
V-ing form
I must be commutating you must be commutating he must be commutating we must be commutating you must be commutating they must be commutating
Perfect
I must have commutated you must have commutated he must have commutated we must have commutated you must have commutated they must have commutated
V-ing perfect
I must have been commutating you must have been commutating he must have been commutating we must have been commutating you must have been commutating they must have been commutating
Negation
Simple form
I must not commutate you must not commutate he must not commutate we must not commutate you must not commutate they must not commutate
V-ing form
I must not be commutating you must not be commutating he must not be commutating we must not be commutating you must not be commutating they must not be commutating
Perfect
I must not have commutated you must not have commutated he must not have commutated we must not have commutated you must not have commutated they must not have commutated
V-ing perfect
I must not have been commutating you must not have been commutating he must not have been commutating we must not have been commutating you must not have been commutating they must not have been commutating
Interrogative form
Simple form
must I commutate? must you commutate? must he commutate? must we commutate? must you commutate? must they commutate?
V-ing form
must I be commutating? must you be commutating? must he be commutating? must we be commutating? must you be commutating? must they be commutating?
Perfect
must I have commutated? must you have commutated? must he have commutated? must we have commutated? must you have commutated? must they have commutated?
V-ing perfect
must I have been commutating? must you have been commutating? must he have been commutating? must we have been commutating? must you have been commutating? must they have been commutating?
Interro-negative form
Simple form
must I not commutate? must you not commutate? must he not commutate? must we not commutate? must you not commutate? must they not commutate?
V-ing form
must I not be commutating? must you not be commutating? must he not be commutating? must we not be commutating? must you not be commutating? must they not be commutating?
Perfect
must I not have commutated? must you not have commutated? must he not have commutated? must we not have commutated? must you not have commutated? must they not have commutated?
V-ing perfect
must I not have been commutating? must you not have been commutating? must he not have been commutating? must we not have been commutating? must you not have been commutating? must they not have been commutating?