must bog
Verbo regular: bog - bogged- bogged

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must bog
you must bog
he must bog
we must bog
you must bog
they must bog 	I must be bogging
you must be bogging
he must be bogging
we must be bogging
you must be bogging
they must be bogging	I must have bogged
you must have bogged
he must have bogged
we must have bogged
you must have bogged
they must have bogged	I must have been bogging
you must have been bogging
he must have been bogging
we must have been bogging
you must have been bogging
they must have been bogging	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not bog
you must not bog
he must not bog
we must not bog
you must not bog
they must not bog 	I must not be bogging
you must not be bogging
he must not be bogging
we must not be bogging
you must not be bogging
they must not be bogging	I must not have bogged
you must not have bogged
he must not have bogged
we must not have bogged
you must not have bogged
they must not have bogged	I must not have been bogging
you must not have been bogging
he must not have been bogging
we must not have been bogging
you must not have been bogging
they must not have been bogging	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I bog?
must you bog?
must he bog?
must we bog?
must you bog?
must they bog? 	must I be bogging?
must you be bogging?
must he be bogging?
must we be bogging?
must you be bogging?
must they be bogging? 	must I have bogged?
must you have bogged?
must he have bogged?
must we have bogged?
must you have bogged?
must they have bogged? 	must I have been bogging?
must you have been bogging?
must he have been bogging?
must we have been bogging?
must you have been bogging?
must they have been bogging? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not bog?
must you not bog?
must he not bog?
must we not bog?
must you not bog?
must they not bog? 	must I not be bogging?
must you not be bogging?
must he not be bogging?
must we not be bogging?
must you not be bogging?
must they not be bogging? 	must I not have bogged?
must you not have bogged?
must he not have bogged?
must we not have bogged?
must you not have bogged?
must they not have bogged? 	must I not have been bogging?
must you not have been bogging?
must he not have been bogging?
must we not have been bogging?
must you not have been bogging?
must they not have been bogging?