must familiarize
Regular verb: familiarize - familiarized- familiarized

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must familiarize
you must familiarize
she must familiarize
we must familiarize
you must familiarize
they must familiarize 	I must be familiarizing
you must be familiarizing
she must be familiarizing
we must be familiarizing
you must be familiarizing
they must be familiarizing	I must have familiarized
you must have familiarized
she must have familiarized
we must have familiarized
you must have familiarized
they must have familiarized	I must have been familiarizing
you must have been familiarizing
she must have been familiarizing
we must have been familiarizing
you must have been familiarizing
they must have been familiarizing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not familiarize
you must not familiarize
she must not familiarize
we must not familiarize
you must not familiarize
they must not familiarize 	I must not be familiarizing
you must not be familiarizing
she must not be familiarizing
we must not be familiarizing
you must not be familiarizing
they must not be familiarizing	I must not have familiarized
you must not have familiarized
she must not have familiarized
we must not have familiarized
you must not have familiarized
they must not have familiarized	I must not have been familiarizing
you must not have been familiarizing
she must not have been familiarizing
we must not have been familiarizing
you must not have been familiarizing
they must not have been familiarizing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I familiarize?
must you familiarize?
must she familiarize?
must we familiarize?
must you familiarize?
must they familiarize? 	must I be familiarizing?
must you be familiarizing?
must she be familiarizing?
must we be familiarizing?
must you be familiarizing?
must they be familiarizing? 	must I have familiarized?
must you have familiarized?
must she have familiarized?
must we have familiarized?
must you have familiarized?
must they have familiarized? 	must I have been familiarizing?
must you have been familiarizing?
must she have been familiarizing?
must we have been familiarizing?
must you have been familiarizing?
must they have been familiarizing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not familiarize?
must you not familiarize?
must she not familiarize?
must we not familiarize?
must you not familiarize?
must they not familiarize? 	must I not be familiarizing?
must you not be familiarizing?
must she not be familiarizing?
must we not be familiarizing?
must you not be familiarizing?
must they not be familiarizing? 	must I not have familiarized?
must you not have familiarized?
must she not have familiarized?
must we not have familiarized?
must you not have familiarized?
must they not have familiarized? 	must I not have been familiarizing?
must you not have been familiarizing?
must she not have been familiarizing?
must we not have been familiarizing?
must you not have been familiarizing?
must they not have been familiarizing?