must catalog
Verbo regular: catalog - cataloged- cataloged

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must catalog
you must catalog
he must catalog
we must catalog
you must catalog
they must catalog 	I must be cataloging
you must be cataloging
he must be cataloging
we must be cataloging
you must be cataloging
they must be cataloging	I must have cataloged
you must have cataloged
he must have cataloged
we must have cataloged
you must have cataloged
they must have cataloged	I must have been cataloging
you must have been cataloging
he must have been cataloging
we must have been cataloging
you must have been cataloging
they must have been cataloging	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not catalog
you must not catalog
he must not catalog
we must not catalog
you must not catalog
they must not catalog 	I must not be cataloging
you must not be cataloging
he must not be cataloging
we must not be cataloging
you must not be cataloging
they must not be cataloging	I must not have cataloged
you must not have cataloged
he must not have cataloged
we must not have cataloged
you must not have cataloged
they must not have cataloged	I must not have been cataloging
you must not have been cataloging
he must not have been cataloging
we must not have been cataloging
you must not have been cataloging
they must not have been cataloging	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I catalog?
must you catalog?
must he catalog?
must we catalog?
must you catalog?
must they catalog? 	must I be cataloging?
must you be cataloging?
must he be cataloging?
must we be cataloging?
must you be cataloging?
must they be cataloging? 	must I have cataloged?
must you have cataloged?
must he have cataloged?
must we have cataloged?
must you have cataloged?
must they have cataloged? 	must I have been cataloging?
must you have been cataloging?
must he have been cataloging?
must we have been cataloging?
must you have been cataloging?
must they have been cataloging? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not catalog?
must you not catalog?
must he not catalog?
must we not catalog?
must you not catalog?
must they not catalog? 	must I not be cataloging?
must you not be cataloging?
must he not be cataloging?
must we not be cataloging?
must you not be cataloging?
must they not be cataloging? 	must I not have cataloged?
must you not have cataloged?
must he not have cataloged?
must we not have cataloged?
must you not have cataloged?
must they not have cataloged? 	must I not have been cataloging?
must you not have been cataloging?
must he not have been cataloging?
must we not have been cataloging?
must you not have been cataloging?
must they not have been cataloging?