English verb conjugation
MUST TREAT

Regular verb: treat - treated - treated

Affirmation

Simple form	V-ing form
I must treat you must treat he must treat we must treat you must treat they must treat	I must be treating you must be treating he must be treating we must be treating you must be treating they must be treating
Perfect	V-ing perfect
I must have treated you must have treated he must have treated we must have treated you must have treated they must have treated	I must have been treating you must have been treating he must have been treating we must have been treating you must have been treating they must have been treating

Negation

Simple form	V-ing form
I must not treat you must not treat he must not treat we must not treat you must not treat they must not treat	I must not be treating you must not be treating he must not be treating we must not be treating you must not be treating they must not be treating
Perfect	V-ing perfect
I must not have treated you must not have treated he must not have treated we must not have treated you must not have treated they must not have treated	I must not have been treating you must not have been treating he must not have been treating we must not have been treating you must not have been treating they must not have been treating

Interrogative form

Simple form	V-ing form
must I treat? must you treat? must he treat? must we treat? must you treat? must they treat?	must I be treating? must you be treating? must he be treating? must we be treating? must you be treating? must they be treating?
Perfect	V-ing perfect
must I have treated? must you have treated? must he have treated? must we have treated? must you have treated? must they have treated?	must I have been treating? must you have been treating? must he have been treating? must we have been treating? must you have been treating? must they have been treating?

Interro-negative form

Simple form	V-ing form
must I not treat? must you not treat? must he not treat? must we not treat? must you not treat? must they not treat?	must I not be treating? must you not be treating? must he not be treating? must we not be treating? must you not be treating? must they not be treating?
Perfect	V-ing perfect
must I not have treated? must you not have treated? must he not have treated? must we not have treated? must you not have treated? must they not have treated?	must I not have been treating? must you not have been treating? must he not have been treating? must we not have been treating? must you not have been treating? must they not have been treating?