must plagiarize
Regular verb: plagiarize - plagiarized- plagiarized

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must plagiarize
you must plagiarize
she must plagiarize
we must plagiarize
you must plagiarize
they must plagiarize 	I must be plagiarizing
you must be plagiarizing
she must be plagiarizing
we must be plagiarizing
you must be plagiarizing
they must be plagiarizing	I must have plagiarized
you must have plagiarized
she must have plagiarized
we must have plagiarized
you must have plagiarized
they must have plagiarized	I must have been plagiarizing
you must have been plagiarizing
she must have been plagiarizing
we must have been plagiarizing
you must have been plagiarizing
they must have been plagiarizing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not plagiarize
you must not plagiarize
she must not plagiarize
we must not plagiarize
you must not plagiarize
they must not plagiarize 	I must not be plagiarizing
you must not be plagiarizing
she must not be plagiarizing
we must not be plagiarizing
you must not be plagiarizing
they must not be plagiarizing	I must not have plagiarized
you must not have plagiarized
she must not have plagiarized
we must not have plagiarized
you must not have plagiarized
they must not have plagiarized	I must not have been plagiarizing
you must not have been plagiarizing
she must not have been plagiarizing
we must not have been plagiarizing
you must not have been plagiarizing
they must not have been plagiarizing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I plagiarize?
must you plagiarize?
must she plagiarize?
must we plagiarize?
must you plagiarize?
must they plagiarize? 	must I be plagiarizing?
must you be plagiarizing?
must she be plagiarizing?
must we be plagiarizing?
must you be plagiarizing?
must they be plagiarizing? 	must I have plagiarized?
must you have plagiarized?
must she have plagiarized?
must we have plagiarized?
must you have plagiarized?
must they have plagiarized? 	must I have been plagiarizing?
must you have been plagiarizing?
must she have been plagiarizing?
must we have been plagiarizing?
must you have been plagiarizing?
must they have been plagiarizing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not plagiarize?
must you not plagiarize?
must she not plagiarize?
must we not plagiarize?
must you not plagiarize?
must they not plagiarize? 	must I not be plagiarizing?
must you not be plagiarizing?
must she not be plagiarizing?
must we not be plagiarizing?
must you not be plagiarizing?
must they not be plagiarizing? 	must I not have plagiarized?
must you not have plagiarized?
must she not have plagiarized?
must we not have plagiarized?
must you not have plagiarized?
must they not have plagiarized? 	must I not have been plagiarizing?
must you not have been plagiarizing?
must she not have been plagiarizing?
must we not have been plagiarizing?
must you not have been plagiarizing?
must they not have been plagiarizing?