English verb conjugation
MUST REOBSERVE

Regular verb: reobserve - reobserved - reobserved

Affirmation

Simple form	V-ing form
I must reobserve you must reobserve she must reobserve we must reobserve you must reobserve they must reobserve	I must be reobserving you must be reobserving she must be reobserving we must be reobserving you must be reobserving they must be reobserving
Perfect	V-ing perfect
I must have reobserved you must have reobserved she must have reobserved we must have reobserved you must have reobserved they must have reobserved	I must have been reobserving you must have been reobserving she must have been reobserving we must have been reobserving you must have been reobserving they must have been reobserving

Negation

Simple form	V-ing form
I mustn't reobserve you mustn't reobserve she mustn't reobserve we mustn't reobserve you mustn't reobserve they mustn't reobserve	I mustn't be reobserving you mustn't be reobserving she mustn't be reobserving we mustn't be reobserving you mustn't be reobserving they mustn't be reobserving
Perfect	V-ing perfect
I mustn't have reobserved you mustn't have reobserved she mustn't have reobserved we mustn't have reobserved you mustn't have reobserved they mustn't have reobserved	I mustn't have been reobserving you mustn't have been reobserving she mustn't have been reobserving we mustn't have been reobserving you mustn't have been reobserving they mustn't have been reobserving

Interrogative form

Simple form	V-ing form
must I reobserve? must you reobserve? must she reobserve? must we reobserve? must you reobserve? must they reobserve?	must I be reobserving? must you be reobserving? must she be reobserving? must we be reobserving? must you be reobserving? must they be reobserving?
Perfect	V-ing perfect
must I have reobserved? must you have reobserved? must she have reobserved? must we have reobserved? must you have reobserved? must they have reobserved?	must I have been reobserving? must you have been reobserving? must she have been reobserving? must we have been reobserving? must you have been reobserving? must they have been reobserving?

Interro-negative form

Simple form	V-ing form
mustn't I reobserve? mustn't you reobserve? mustn't she reobserve? mustn't we reobserve? mustn't you reobserve? mustn't they reobserve?	mustn't I be reobserving? mustn't you be reobserving? mustn't she be reobserving? mustn't we be reobserving? mustn't you be reobserving? mustn't they be reobserving?
Perfect	V-ing perfect
mustn't I have reobserved? mustn't you have reobserved? mustn't she have reobserved? mustn't we have reobserved? mustn't you have reobserved? mustn't they have reobserved?	mustn't I have been reobserving? mustn't you have been reobserving? mustn't she have been reobserving? mustn't we have been reobserving? mustn't you have been reobserving? mustn't they have been reobserving?