must metathesize
Regular verb: metathesize - metathesized- metathesized

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must metathesize
you must metathesize
he must metathesize
we must metathesize
you must metathesize
they must metathesize 	I must be metathesizing
you must be metathesizing
he must be metathesizing
we must be metathesizing
you must be metathesizing
they must be metathesizing	I must have metathesized
you must have metathesized
he must have metathesized
we must have metathesized
you must have metathesized
they must have metathesized	I must have been metathesizing
you must have been metathesizing
he must have been metathesizing
we must have been metathesizing
you must have been metathesizing
they must have been metathesizing	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I must not metathesize
you must not metathesize
he must not metathesize
we must not metathesize
you must not metathesize
they must not metathesize 	I must not be metathesizing
you must not be metathesizing
he must not be metathesizing
we must not be metathesizing
you must not be metathesizing
they must not be metathesizing	I must not have metathesized
you must not have metathesized
he must not have metathesized
we must not have metathesized
you must not have metathesized
they must not have metathesized	I must not have been metathesizing
you must not have been metathesizing
he must not have been metathesizing
we must not have been metathesizing
you must not have been metathesizing
they must not have been metathesizing	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I metathesize?
must you metathesize?
must he metathesize?
must we metathesize?
must you metathesize?
must they metathesize? 	must I be metathesizing?
must you be metathesizing?
must he be metathesizing?
must we be metathesizing?
must you be metathesizing?
must they be metathesizing? 	must I have metathesized?
must you have metathesized?
must he have metathesized?
must we have metathesized?
must you have metathesized?
must they have metathesized? 	must I have been metathesizing?
must you have been metathesizing?
must he have been metathesizing?
must we have been metathesizing?
must you have been metathesizing?
must they have been metathesizing? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
must I not metathesize?
must you not metathesize?
must he not metathesize?
must we not metathesize?
must you not metathesize?
must they not metathesize? 	must I not be metathesizing?
must you not be metathesizing?
must he not be metathesizing?
must we not be metathesizing?
must you not be metathesizing?
must they not be metathesizing? 	must I not have metathesized?
must you not have metathesized?
must he not have metathesized?
must we not have metathesized?
must you not have metathesized?
must they not have metathesized? 	must I not have been metathesizing?
must you not have been metathesizing?
must he not have been metathesizing?
must we not have been metathesizing?
must you not have been metathesizing?
must they not have been metathesizing?