must hybridize
Regular verb: hybridize - hybridized- hybridized

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must hybridize
you must hybridize
she must hybridize
we must hybridize
you must hybridize
they must hybridize 	I must be hybridizing
you must be hybridizing
she must be hybridizing
we must be hybridizing
you must be hybridizing
they must be hybridizing	I must have hybridized
you must have hybridized
she must have hybridized
we must have hybridized
you must have hybridized
they must have hybridized	I must have been hybridizing
you must have been hybridizing
she must have been hybridizing
we must have been hybridizing
you must have been hybridizing
they must have been hybridizing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not hybridize
you must not hybridize
she must not hybridize
we must not hybridize
you must not hybridize
they must not hybridize 	I must not be hybridizing
you must not be hybridizing
she must not be hybridizing
we must not be hybridizing
you must not be hybridizing
they must not be hybridizing	I must not have hybridized
you must not have hybridized
she must not have hybridized
we must not have hybridized
you must not have hybridized
they must not have hybridized	I must not have been hybridizing
you must not have been hybridizing
she must not have been hybridizing
we must not have been hybridizing
you must not have been hybridizing
they must not have been hybridizing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I hybridize?
must you hybridize?
must she hybridize?
must we hybridize?
must you hybridize?
must they hybridize? 	must I be hybridizing?
must you be hybridizing?
must she be hybridizing?
must we be hybridizing?
must you be hybridizing?
must they be hybridizing? 	must I have hybridized?
must you have hybridized?
must she have hybridized?
must we have hybridized?
must you have hybridized?
must they have hybridized? 	must I have been hybridizing?
must you have been hybridizing?
must she have been hybridizing?
must we have been hybridizing?
must you have been hybridizing?
must they have been hybridizing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not hybridize?
must you not hybridize?
must she not hybridize?
must we not hybridize?
must you not hybridize?
must they not hybridize? 	must I not be hybridizing?
must you not be hybridizing?
must she not be hybridizing?
must we not be hybridizing?
must you not be hybridizing?
must they not be hybridizing? 	must I not have hybridized?
must you not have hybridized?
must she not have hybridized?
must we not have hybridized?
must you not have hybridized?
must they not have hybridized? 	must I not have been hybridizing?
must you not have been hybridizing?
must she not have been hybridizing?
must we not have been hybridizing?
must you not have been hybridizing?
must they not have been hybridizing?