must corrupt
Regular verb: corrupt - corrupted- corrupted

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must corrupt
you must corrupt
he must corrupt
we must corrupt
you must corrupt
they must corrupt 	I must be corrupting
you must be corrupting
he must be corrupting
we must be corrupting
you must be corrupting
they must be corrupting	I must have corrupted
you must have corrupted
he must have corrupted
we must have corrupted
you must have corrupted
they must have corrupted	I must have been corrupting
you must have been corrupting
he must have been corrupting
we must have been corrupting
you must have been corrupting
they must have been corrupting	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not corrupt
you must not corrupt
he must not corrupt
we must not corrupt
you must not corrupt
they must not corrupt 	I must not be corrupting
you must not be corrupting
he must not be corrupting
we must not be corrupting
you must not be corrupting
they must not be corrupting	I must not have corrupted
you must not have corrupted
he must not have corrupted
we must not have corrupted
you must not have corrupted
they must not have corrupted	I must not have been corrupting
you must not have been corrupting
he must not have been corrupting
we must not have been corrupting
you must not have been corrupting
they must not have been corrupting	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I corrupt?
must you corrupt?
must he corrupt?
must we corrupt?
must you corrupt?
must they corrupt? 	must I be corrupting?
must you be corrupting?
must he be corrupting?
must we be corrupting?
must you be corrupting?
must they be corrupting? 	must I have corrupted?
must you have corrupted?
must he have corrupted?
must we have corrupted?
must you have corrupted?
must they have corrupted? 	must I have been corrupting?
must you have been corrupting?
must he have been corrupting?
must we have been corrupting?
must you have been corrupting?
must they have been corrupting? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not corrupt?
must you not corrupt?
must he not corrupt?
must we not corrupt?
must you not corrupt?
must they not corrupt? 	must I not be corrupting?
must you not be corrupting?
must he not be corrupting?
must we not be corrupting?
must you not be corrupting?
must they not be corrupting? 	must I not have corrupted?
must you not have corrupted?
must he not have corrupted?
must we not have corrupted?
must you not have corrupted?
must they not have corrupted? 	must I not have been corrupting?
must you not have been corrupting?
must he not have been corrupting?
must we not have been corrupting?
must you not have been corrupting?
must they not have been corrupting?