must lithify
Verbo regular: lithify - lithified- lithified

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must lithify
you must lithify
he must lithify
we must lithify
you must lithify
they must lithify 	I must be lithifying
you must be lithifying
he must be lithifying
we must be lithifying
you must be lithifying
they must be lithifying	I must have lithified
you must have lithified
he must have lithified
we must have lithified
you must have lithified
they must have lithified	I must have been lithifying
you must have been lithifying
he must have been lithifying
we must have been lithifying
you must have been lithifying
they must have been lithifying	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not lithify
you must not lithify
he must not lithify
we must not lithify
you must not lithify
they must not lithify 	I must not be lithifying
you must not be lithifying
he must not be lithifying
we must not be lithifying
you must not be lithifying
they must not be lithifying	I must not have lithified
you must not have lithified
he must not have lithified
we must not have lithified
you must not have lithified
they must not have lithified	I must not have been lithifying
you must not have been lithifying
he must not have been lithifying
we must not have been lithifying
you must not have been lithifying
they must not have been lithifying	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I lithify?
must you lithify?
must he lithify?
must we lithify?
must you lithify?
must they lithify? 	must I be lithifying?
must you be lithifying?
must he be lithifying?
must we be lithifying?
must you be lithifying?
must they be lithifying? 	must I have lithified?
must you have lithified?
must he have lithified?
must we have lithified?
must you have lithified?
must they have lithified? 	must I have been lithifying?
must you have been lithifying?
must he have been lithifying?
must we have been lithifying?
must you have been lithifying?
must they have been lithifying? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not lithify?
must you not lithify?
must he not lithify?
must we not lithify?
must you not lithify?
must they not lithify? 	must I not be lithifying?
must you not be lithifying?
must he not be lithifying?
must we not be lithifying?
must you not be lithifying?
must they not be lithifying? 	must I not have lithified?
must you not have lithified?
must he not have lithified?
must we not have lithified?
must you not have lithified?
must they not have lithified? 	must I not have been lithifying?
must you not have been lithifying?
must he not have been lithifying?
must we not have been lithifying?
must you not have been lithifying?
must they not have been lithifying?