must lithograph
Verbo regular: lithograph - lithographed- lithographed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must lithograph
you must lithograph
he must lithograph
we must lithograph
you must lithograph
they must lithograph 	I must be lithographing
you must be lithographing
he must be lithographing
we must be lithographing
you must be lithographing
they must be lithographing	I must have lithographed
you must have lithographed
he must have lithographed
we must have lithographed
you must have lithographed
they must have lithographed	I must have been lithographing
you must have been lithographing
he must have been lithographing
we must have been lithographing
you must have been lithographing
they must have been lithographing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not lithograph
you must not lithograph
he must not lithograph
we must not lithograph
you must not lithograph
they must not lithograph 	I must not be lithographing
you must not be lithographing
he must not be lithographing
we must not be lithographing
you must not be lithographing
they must not be lithographing	I must not have lithographed
you must not have lithographed
he must not have lithographed
we must not have lithographed
you must not have lithographed
they must not have lithographed	I must not have been lithographing
you must not have been lithographing
he must not have been lithographing
we must not have been lithographing
you must not have been lithographing
they must not have been lithographing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I lithograph?
must you lithograph?
must he lithograph?
must we lithograph?
must you lithograph?
must they lithograph? 	must I be lithographing?
must you be lithographing?
must he be lithographing?
must we be lithographing?
must you be lithographing?
must they be lithographing? 	must I have lithographed?
must you have lithographed?
must he have lithographed?
must we have lithographed?
must you have lithographed?
must they have lithographed? 	must I have been lithographing?
must you have been lithographing?
must he have been lithographing?
must we have been lithographing?
must you have been lithographing?
must they have been lithographing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not lithograph?
must you not lithograph?
must he not lithograph?
must we not lithograph?
must you not lithograph?
must they not lithograph? 	must I not be lithographing?
must you not be lithographing?
must he not be lithographing?
must we not be lithographing?
must you not be lithographing?
must they not be lithographing? 	must I not have lithographed?
must you not have lithographed?
must he not have lithographed?
must we not have lithographed?
must you not have lithographed?
must they not have lithographed? 	must I not have been lithographing?
must you not have been lithographing?
must he not have been lithographing?
must we not have been lithographing?
must you not have been lithographing?
must they not have been lithographing?