I must regenerate you must regenerate he must regenerate we must regenerate you must regenerate they must regenerate
V-ing form
I must be regenerating you must be regenerating he must be regenerating we must be regenerating you must be regenerating they must be regenerating
Perfect
I must have regenerated you must have regenerated he must have regenerated we must have regenerated you must have regenerated they must have regenerated
V-ing perfect
I must have been regenerating you must have been regenerating he must have been regenerating we must have been regenerating you must have been regenerating they must have been regenerating
Negation
Simple form
I must not regenerate you must not regenerate he must not regenerate we must not regenerate you must not regenerate they must not regenerate
V-ing form
I must not be regenerating you must not be regenerating he must not be regenerating we must not be regenerating you must not be regenerating they must not be regenerating
Perfect
I must not have regenerated you must not have regenerated he must not have regenerated we must not have regenerated you must not have regenerated they must not have regenerated
V-ing perfect
I must not have been regenerating you must not have been regenerating he must not have been regenerating we must not have been regenerating you must not have been regenerating they must not have been regenerating
Interrogative form
Simple form
must I regenerate? must you regenerate? must he regenerate? must we regenerate? must you regenerate? must they regenerate?
V-ing form
must I be regenerating? must you be regenerating? must he be regenerating? must we be regenerating? must you be regenerating? must they be regenerating?
Perfect
must I have regenerated? must you have regenerated? must he have regenerated? must we have regenerated? must you have regenerated? must they have regenerated?
V-ing perfect
must I have been regenerating? must you have been regenerating? must he have been regenerating? must we have been regenerating? must you have been regenerating? must they have been regenerating?
Interro-negative form
Simple form
must I not regenerate? must you not regenerate? must he not regenerate? must we not regenerate? must you not regenerate? must they not regenerate?
V-ing form
must I not be regenerating? must you not be regenerating? must he not be regenerating? must we not be regenerating? must you not be regenerating? must they not be regenerating?
Perfect
must I not have regenerated? must you not have regenerated? must he not have regenerated? must we not have regenerated? must you not have regenerated? must they not have regenerated?
V-ing perfect
must I not have been regenerating? must you not have been regenerating? must he not have been regenerating? must we not have been regenerating? must you not have been regenerating? must they not have been regenerating?