English verb conjugation
MUST PUTREFY

Regular verb: putrefy - putrefied - putrefied

Affirmation

Simple form	V-ing form
I must putrefy you must putrefy he must putrefy we must putrefy you must putrefy they must putrefy	I must be putrefying you must be putrefying he must be putrefying we must be putrefying you must be putrefying they must be putrefying
Perfect	V-ing perfect
I must have putrefied you must have putrefied he must have putrefied we must have putrefied you must have putrefied they must have putrefied	I must have been putrefying you must have been putrefying he must have been putrefying we must have been putrefying you must have been putrefying they must have been putrefying

Negation

Simple form	V-ing form
I must not putrefy you must not putrefy he must not putrefy we must not putrefy you must not putrefy they must not putrefy	I must not be putrefying you must not be putrefying he must not be putrefying we must not be putrefying you must not be putrefying they must not be putrefying
Perfect	V-ing perfect
I must not have putrefied you must not have putrefied he must not have putrefied we must not have putrefied you must not have putrefied they must not have putrefied	I must not have been putrefying you must not have been putrefying he must not have been putrefying we must not have been putrefying you must not have been putrefying they must not have been putrefying

Interrogative form

Simple form	V-ing form
must I putrefy? must you putrefy? must he putrefy? must we putrefy? must you putrefy? must they putrefy?	must I be putrefying? must you be putrefying? must he be putrefying? must we be putrefying? must you be putrefying? must they be putrefying?
Perfect	V-ing perfect
must I have putrefied? must you have putrefied? must he have putrefied? must we have putrefied? must you have putrefied? must they have putrefied?	must I have been putrefying? must you have been putrefying? must he have been putrefying? must we have been putrefying? must you have been putrefying? must they have been putrefying?

Interro-negative form

Simple form	V-ing form
must I not putrefy? must you not putrefy? must he not putrefy? must we not putrefy? must you not putrefy? must they not putrefy?	must I not be putrefying? must you not be putrefying? must he not be putrefying? must we not be putrefying? must you not be putrefying? must they not be putrefying?
Perfect	V-ing perfect
must I not have putrefied? must you not have putrefied? must he not have putrefied? must we not have putrefied? must you not have putrefied? must they not have putrefied?	must I not have been putrefying? must you not have been putrefying? must he not have been putrefying? must we not have been putrefying? must you not have been putrefying? must they not have been putrefying?