must chug
Verbo regular: chug - chugged- chugged

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must chug
you must chug
he must chug
we must chug
you must chug
they must chug 	I must be chugging
you must be chugging
he must be chugging
we must be chugging
you must be chugging
they must be chugging	I must have chugged
you must have chugged
he must have chugged
we must have chugged
you must have chugged
they must have chugged	I must have been chugging
you must have been chugging
he must have been chugging
we must have been chugging
you must have been chugging
they must have been chugging	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not chug
you must not chug
he must not chug
we must not chug
you must not chug
they must not chug 	I must not be chugging
you must not be chugging
he must not be chugging
we must not be chugging
you must not be chugging
they must not be chugging	I must not have chugged
you must not have chugged
he must not have chugged
we must not have chugged
you must not have chugged
they must not have chugged	I must not have been chugging
you must not have been chugging
he must not have been chugging
we must not have been chugging
you must not have been chugging
they must not have been chugging	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I chug?
must you chug?
must he chug?
must we chug?
must you chug?
must they chug? 	must I be chugging?
must you be chugging?
must he be chugging?
must we be chugging?
must you be chugging?
must they be chugging? 	must I have chugged?
must you have chugged?
must he have chugged?
must we have chugged?
must you have chugged?
must they have chugged? 	must I have been chugging?
must you have been chugging?
must he have been chugging?
must we have been chugging?
must you have been chugging?
must they have been chugging? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not chug?
must you not chug?
must he not chug?
must we not chug?
must you not chug?
must they not chug? 	must I not be chugging?
must you not be chugging?
must he not be chugging?
must we not be chugging?
must you not be chugging?
must they not be chugging? 	must I not have chugged?
must you not have chugged?
must he not have chugged?
must we not have chugged?
must you not have chugged?
must they not have chugged? 	must I not have been chugging?
must you not have been chugging?
must he not have been chugging?
must we not have been chugging?
must you not have been chugging?
must they not have been chugging?