English verb conjugation
MUST COMPARE

Regular verb: compare - compared - compared

Affirmation

Simple form	V-ing form
I must compare you must compare he must compare we must compare you must compare they must compare	I must be comparing you must be comparing he 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 he 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 he 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 he 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 he 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 he 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 he 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 he compare? must we compare? must you compare? must they compare?	must I be comparing? must you be comparing? must he 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 he 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 he 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 he 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 he 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 he 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 he have been comparing? mustn't we have been comparing? mustn't you have been comparing? mustn't they have been comparing?