English verb conjugation
MUST CURSE

Regular verb: curse - cursed - cursed

Affirmation

Simple form	V-ing form
I must curse you must curse he must curse we must curse you must curse they must curse	I must be cursing you must be cursing he must be cursing we must be cursing you must be cursing they must be cursing
Perfect	V-ing perfect
I must have cursed you must have cursed he must have cursed we must have cursed you must have cursed they must have cursed	I must have been cursing you must have been cursing he must have been cursing we must have been cursing you must have been cursing they must have been cursing

Negation

Simple form	V-ing form
I must not curse you must not curse he must not curse we must not curse you must not curse they must not curse	I must not be cursing you must not be cursing he must not be cursing we must not be cursing you must not be cursing they must not be cursing
Perfect	V-ing perfect
I must not have cursed you must not have cursed he must not have cursed we must not have cursed you must not have cursed they must not have cursed	I must not have been cursing you must not have been cursing he must not have been cursing we must not have been cursing you must not have been cursing they must not have been cursing

Interrogative form

Simple form	V-ing form
must I curse? must you curse? must he curse? must we curse? must you curse? must they curse?	must I be cursing? must you be cursing? must he be cursing? must we be cursing? must you be cursing? must they be cursing?
Perfect	V-ing perfect
must I have cursed? must you have cursed? must he have cursed? must we have cursed? must you have cursed? must they have cursed?	must I have been cursing? must you have been cursing? must he have been cursing? must we have been cursing? must you have been cursing? must they have been cursing?

Interro-negative form

Simple form	V-ing form
must I not curse? must you not curse? must he not curse? must we not curse? must you not curse? must they not curse?	must I not be cursing? must you not be cursing? must he not be cursing? must we not be cursing? must you not be cursing? must they not be cursing?
Perfect	V-ing perfect
must I not have cursed? must you not have cursed? must he not have cursed? must we not have cursed? must you not have cursed? must they not have cursed?	must I not have been cursing? must you not have been cursing? must he not have been cursing? must we not have been cursing? must you not have been cursing? must they not have been cursing?