I must withdraw you must withdraw she must withdraw we must withdraw you must withdraw they must withdraw
V-ing form
I must be withdrawing you must be withdrawing she must be withdrawing we must be withdrawing you must be withdrawing they must be withdrawing
Perfect
I must have withdrawn you must have withdrawn she must have withdrawn we must have withdrawn you must have withdrawn they must have withdrawn
V-ing perfect
I must have been withdrawing you must have been withdrawing she must have been withdrawing we must have been withdrawing you must have been withdrawing they must have been withdrawing
Negation
Simple form
I must not withdraw you must not withdraw she must not withdraw we must not withdraw you must not withdraw they must not withdraw
V-ing form
I must not be withdrawing you must not be withdrawing she must not be withdrawing we must not be withdrawing you must not be withdrawing they must not be withdrawing
Perfect
I must not have withdrawn you must not have withdrawn she must not have withdrawn we must not have withdrawn you must not have withdrawn they must not have withdrawn
V-ing perfect
I must not have been withdrawing you must not have been withdrawing she must not have been withdrawing we must not have been withdrawing you must not have been withdrawing they must not have been withdrawing
Interrogative form
Simple form
must I withdraw? must you withdraw? must she withdraw? must we withdraw? must you withdraw? must they withdraw?
V-ing form
must I be withdrawing? must you be withdrawing? must she be withdrawing? must we be withdrawing? must you be withdrawing? must they be withdrawing?
Perfect
must I have withdrawn? must you have withdrawn? must she have withdrawn? must we have withdrawn? must you have withdrawn? must they have withdrawn?
V-ing perfect
must I have been withdrawing? must you have been withdrawing? must she have been withdrawing? must we have been withdrawing? must you have been withdrawing? must they have been withdrawing?
Interro-negative form
Simple form
must I not withdraw? must you not withdraw? must she not withdraw? must we not withdraw? must you not withdraw? must they not withdraw?
V-ing form
must I not be withdrawing? must you not be withdrawing? must she not be withdrawing? must we not be withdrawing? must you not be withdrawing? must they not be withdrawing?
Perfect
must I not have withdrawn? must you not have withdrawn? must she not have withdrawn? must we not have withdrawn? must you not have withdrawn? must they not have withdrawn?
V-ing perfect
must I not have been withdrawing? must you not have been withdrawing? must she not have been withdrawing? must we not have been withdrawing? must you not have been withdrawing? must they not have been withdrawing?