English verb conjugation
MUST RESERVE

Regular verb: reserve - reserved - reserved

Affirmation

Simple form	V-ing form
I must reserve you must reserve she must reserve we must reserve you must reserve they must reserve	I must be reserving you must be reserving she must be reserving we must be reserving you must be reserving they must be reserving
Perfect	V-ing perfect
I must have reserved you must have reserved she must have reserved we must have reserved you must have reserved they must have reserved	I must have been reserving you must have been reserving she must have been reserving we must have been reserving you must have been reserving they must have been reserving

Negation

Simple form	V-ing form
I must not reserve you must not reserve she must not reserve we must not reserve you must not reserve they must not reserve	I must not be reserving you must not be reserving she must not be reserving we must not be reserving you must not be reserving they must not be reserving
Perfect	V-ing perfect
I must not have reserved you must not have reserved she must not have reserved we must not have reserved you must not have reserved they must not have reserved	I must not have been reserving you must not have been reserving she must not have been reserving we must not have been reserving you must not have been reserving they must not have been reserving

Interrogative form

Simple form	V-ing form
must I reserve? must you reserve? must she reserve? must we reserve? must you reserve? must they reserve?	must I be reserving? must you be reserving? must she be reserving? must we be reserving? must you be reserving? must they be reserving?
Perfect	V-ing perfect
must I have reserved? must you have reserved? must she have reserved? must we have reserved? must you have reserved? must they have reserved?	must I have been reserving? must you have been reserving? must she have been reserving? must we have been reserving? must you have been reserving? must they have been reserving?

Interro-negative form

Simple form	V-ing form
must I not reserve? must you not reserve? must she not reserve? must we not reserve? must you not reserve? must they not reserve?	must I not be reserving? must you not be reserving? must she not be reserving? must we not be reserving? must you not be reserving? must they not be reserving?
Perfect	V-ing perfect
must I not have reserved? must you not have reserved? must she not have reserved? must we not have reserved? must you not have reserved? must they not have reserved?	must I not have been reserving? must you not have been reserving? must she not have been reserving? must we not have been reserving? must you not have been reserving? must they not have been reserving?