English verb conjugation
MUST DERAI

Regular verb: derai - deraied - deraied

Affirmation

Simple form	V-ing form
I must derai you must derai he must derai we must derai you must derai they must derai	I must be deraiing you must be deraiing he must be deraiing we must be deraiing you must be deraiing they must be deraiing
Perfect	V-ing perfect
I must have deraied you must have deraied he must have deraied we must have deraied you must have deraied they must have deraied	I must have been deraiing you must have been deraiing he must have been deraiing we must have been deraiing you must have been deraiing they must have been deraiing

Negation

Simple form	V-ing form
I must not derai you must not derai he must not derai we must not derai you must not derai they must not derai	I must not be deraiing you must not be deraiing he must not be deraiing we must not be deraiing you must not be deraiing they must not be deraiing
Perfect	V-ing perfect
I must not have deraied you must not have deraied he must not have deraied we must not have deraied you must not have deraied they must not have deraied	I must not have been deraiing you must not have been deraiing he must not have been deraiing we must not have been deraiing you must not have been deraiing they must not have been deraiing

Interrogative form

Simple form	V-ing form
must I derai? must you derai? must he derai? must we derai? must you derai? must they derai?	must I be deraiing? must you be deraiing? must he be deraiing? must we be deraiing? must you be deraiing? must they be deraiing?
Perfect	V-ing perfect
must I have deraied? must you have deraied? must he have deraied? must we have deraied? must you have deraied? must they have deraied?	must I have been deraiing? must you have been deraiing? must he have been deraiing? must we have been deraiing? must you have been deraiing? must they have been deraiing?

Interro-negative form

Simple form	V-ing form
must I not derai? must you not derai? must he not derai? must we not derai? must you not derai? must they not derai?	must I not be deraiing? must you not be deraiing? must he not be deraiing? must we not be deraiing? must you not be deraiing? must they not be deraiing?
Perfect	V-ing perfect
must I not have deraied? must you not have deraied? must he not have deraied? must we not have deraied? must you not have deraied? must they not have deraied?	must I not have been deraiing? must you not have been deraiing? must he not have been deraiing? must we not have been deraiing? must you not have been deraiing? must they not have been deraiing?