English verb conjugation
MUST DERAI

Regular verb: derai - deraied - deraied

Affirmation

Simple form	V-ing form
I must derai you must derai she must derai we must derai you must derai they must derai	I must be deraiing you must be deraiing she 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 she 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 she 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 she 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 she 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 she 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 she 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 she derai? must we derai? must you derai? must they derai?	must I be deraiing? must you be deraiing? must she 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 she 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 she 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 she 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 she 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 she 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 she not have been deraiing? must we not have been deraiing? must you not have been deraiing? must they not have been deraiing?