I must approbate you must approbate he must approbate we must approbate you must approbate they must approbate
V-ing form
I must be approbating you must be approbating he must be approbating we must be approbating you must be approbating they must be approbating
Perfect
I must have approbated you must have approbated he must have approbated we must have approbated you must have approbated they must have approbated
V-ing perfect
I must have been approbating you must have been approbating he must have been approbating we must have been approbating you must have been approbating they must have been approbating
Negation
Simple form
I must not approbate you must not approbate he must not approbate we must not approbate you must not approbate they must not approbate
V-ing form
I must not be approbating you must not be approbating he must not be approbating we must not be approbating you must not be approbating they must not be approbating
Perfect
I must not have approbated you must not have approbated he must not have approbated we must not have approbated you must not have approbated they must not have approbated
V-ing perfect
I must not have been approbating you must not have been approbating he must not have been approbating we must not have been approbating you must not have been approbating they must not have been approbating
Interrogative form
Simple form
must I approbate? must you approbate? must he approbate? must we approbate? must you approbate? must they approbate?
V-ing form
must I be approbating? must you be approbating? must he be approbating? must we be approbating? must you be approbating? must they be approbating?
Perfect
must I have approbated? must you have approbated? must he have approbated? must we have approbated? must you have approbated? must they have approbated?
V-ing perfect
must I have been approbating? must you have been approbating? must he have been approbating? must we have been approbating? must you have been approbating? must they have been approbating?
Interro-negative form
Simple form
must I not approbate? must you not approbate? must he not approbate? must we not approbate? must you not approbate? must they not approbate?
V-ing form
must I not be approbating? must you not be approbating? must he not be approbating? must we not be approbating? must you not be approbating? must they not be approbating?
Perfect
must I not have approbated? must you not have approbated? must he not have approbated? must we not have approbated? must you not have approbated? must they not have approbated?
V-ing perfect
must I not have been approbating? must you not have been approbating? must he not have been approbating? must we not have been approbating? must you not have been approbating? must they not have been approbating?