English verb conjugation
MUST COMPARE

Regular verb: compare - compared - compared

Affirmation

Simple form	V-ing form
I must compare you must compare she must compare we must compare you must compare they must compare	I must be comparing you must be comparing she must be comparing we must be comparing you must be comparing they must be comparing
Perfect	V-ing perfect
I must have compared you must have compared she must have compared we must have compared you must have compared they must have compared	I must have been comparing you must have been comparing she must have been comparing we must have been comparing you must have been comparing they must have been comparing

Negation

Simple form	V-ing form
I mustn't compare you mustn't compare she mustn't compare we mustn't compare you mustn't compare they mustn't compare	I mustn't be comparing you mustn't be comparing she mustn't be comparing we mustn't be comparing you mustn't be comparing they mustn't be comparing
Perfect	V-ing perfect
I mustn't have compared you mustn't have compared she mustn't have compared we mustn't have compared you mustn't have compared they mustn't have compared	I mustn't have been comparing you mustn't have been comparing she mustn't have been comparing we mustn't have been comparing you mustn't have been comparing they mustn't have been comparing

Interrogative form

Simple form	V-ing form
must I compare? must you compare? must she compare? must we compare? must you compare? must they compare?	must I be comparing? must you be comparing? must she be comparing? must we be comparing? must you be comparing? must they be comparing?
Perfect	V-ing perfect
must I have compared? must you have compared? must she have compared? must we have compared? must you have compared? must they have compared?	must I have been comparing? must you have been comparing? must she have been comparing? must we have been comparing? must you have been comparing? must they have been comparing?

Interro-negative form

Simple form	V-ing form
mustn't I compare? mustn't you compare? mustn't she compare? mustn't we compare? mustn't you compare? mustn't they compare?	mustn't I be comparing? mustn't you be comparing? mustn't she be comparing? mustn't we be comparing? mustn't you be comparing? mustn't they be comparing?
Perfect	V-ing perfect
mustn't I have compared? mustn't you have compared? mustn't she have compared? mustn't we have compared? mustn't you have compared? mustn't they have compared?	mustn't I have been comparing? mustn't you have been comparing? mustn't she have been comparing? mustn't we have been comparing? mustn't you have been comparing? mustn't they have been comparing?