must ratiocinate
Verbo regular: ratiocinate - ratiocinated- ratiocinated

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must ratiocinate
you must ratiocinate
he must ratiocinate
we must ratiocinate
you must ratiocinate
they must ratiocinate 	I must be ratiocinating
you must be ratiocinating
he must be ratiocinating
we must be ratiocinating
you must be ratiocinating
they must be ratiocinating	I must have ratiocinated
you must have ratiocinated
he must have ratiocinated
we must have ratiocinated
you must have ratiocinated
they must have ratiocinated	I must have been ratiocinating
you must have been ratiocinating
he must have been ratiocinating
we must have been ratiocinating
you must have been ratiocinating
they must have been ratiocinating	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not ratiocinate
you must not ratiocinate
he must not ratiocinate
we must not ratiocinate
you must not ratiocinate
they must not ratiocinate 	I must not be ratiocinating
you must not be ratiocinating
he must not be ratiocinating
we must not be ratiocinating
you must not be ratiocinating
they must not be ratiocinating	I must not have ratiocinated
you must not have ratiocinated
he must not have ratiocinated
we must not have ratiocinated
you must not have ratiocinated
they must not have ratiocinated	I must not have been ratiocinating
you must not have been ratiocinating
he must not have been ratiocinating
we must not have been ratiocinating
you must not have been ratiocinating
they must not have been ratiocinating	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I ratiocinate?
must you ratiocinate?
must he ratiocinate?
must we ratiocinate?
must you ratiocinate?
must they ratiocinate? 	must I be ratiocinating?
must you be ratiocinating?
must he be ratiocinating?
must we be ratiocinating?
must you be ratiocinating?
must they be ratiocinating? 	must I have ratiocinated?
must you have ratiocinated?
must he have ratiocinated?
must we have ratiocinated?
must you have ratiocinated?
must they have ratiocinated? 	must I have been ratiocinating?
must you have been ratiocinating?
must he have been ratiocinating?
must we have been ratiocinating?
must you have been ratiocinating?
must they have been ratiocinating? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not ratiocinate?
must you not ratiocinate?
must he not ratiocinate?
must we not ratiocinate?
must you not ratiocinate?
must they not ratiocinate? 	must I not be ratiocinating?
must you not be ratiocinating?
must he not be ratiocinating?
must we not be ratiocinating?
must you not be ratiocinating?
must they not be ratiocinating? 	must I not have ratiocinated?
must you not have ratiocinated?
must he not have ratiocinated?
must we not have ratiocinated?
must you not have ratiocinated?
must they not have ratiocinated? 	must I not have been ratiocinating?
must you not have been ratiocinating?
must he not have been ratiocinating?
must we not have been ratiocinating?
must you not have been ratiocinating?
must they not have been ratiocinating?