English verb conjugation
MUST NIGH

Regular verb: nigh - nighed - nighed

Affirmation

Simple form	V-ing form
I must nigh you must nigh he must nigh we must nigh you must nigh they must nigh	I must be nighing you must be nighing he must be nighing we must be nighing you must be nighing they must be nighing
Perfect	V-ing perfect
I must have nighed you must have nighed he must have nighed we must have nighed you must have nighed they must have nighed	I must have been nighing you must have been nighing he must have been nighing we must have been nighing you must have been nighing they must have been nighing

Negation

Simple form	V-ing form
I must not nigh you must not nigh he must not nigh we must not nigh you must not nigh they must not nigh	I must not be nighing you must not be nighing he must not be nighing we must not be nighing you must not be nighing they must not be nighing
Perfect	V-ing perfect
I must not have nighed you must not have nighed he must not have nighed we must not have nighed you must not have nighed they must not have nighed	I must not have been nighing you must not have been nighing he must not have been nighing we must not have been nighing you must not have been nighing they must not have been nighing

Interrogative form

Simple form	V-ing form
must I nigh? must you nigh? must he nigh? must we nigh? must you nigh? must they nigh?	must I be nighing? must you be nighing? must he be nighing? must we be nighing? must you be nighing? must they be nighing?
Perfect	V-ing perfect
must I have nighed? must you have nighed? must he have nighed? must we have nighed? must you have nighed? must they have nighed?	must I have been nighing? must you have been nighing? must he have been nighing? must we have been nighing? must you have been nighing? must they have been nighing?

Interro-negative form

Simple form	V-ing form
must I not nigh? must you not nigh? must he not nigh? must we not nigh? must you not nigh? must they not nigh?	must I not be nighing? must you not be nighing? must he not be nighing? must we not be nighing? must you not be nighing? must they not be nighing?
Perfect	V-ing perfect
must I not have nighed? must you not have nighed? must he not have nighed? must we not have nighed? must you not have nighed? must they not have nighed?	must I not have been nighing? must you not have been nighing? must he not have been nighing? must we not have been nighing? must you not have been nighing? must they not have been nighing?