must assess
Verbo regular: assess - assessed- assessed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must assess
you must assess
he must assess
we must assess
you must assess
they must assess 	I must be assessing
you must be assessing
he must be assessing
we must be assessing
you must be assessing
they must be assessing	I must have assessed
you must have assessed
he must have assessed
we must have assessed
you must have assessed
they must have assessed	I must have been assessing
you must have been assessing
he must have been assessing
we must have been assessing
you must have been assessing
they must have been assessing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not assess
you must not assess
he must not assess
we must not assess
you must not assess
they must not assess 	I must not be assessing
you must not be assessing
he must not be assessing
we must not be assessing
you must not be assessing
they must not be assessing	I must not have assessed
you must not have assessed
he must not have assessed
we must not have assessed
you must not have assessed
they must not have assessed	I must not have been assessing
you must not have been assessing
he must not have been assessing
we must not have been assessing
you must not have been assessing
they must not have been assessing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I assess?
must you assess?
must he assess?
must we assess?
must you assess?
must they assess? 	must I be assessing?
must you be assessing?
must he be assessing?
must we be assessing?
must you be assessing?
must they be assessing? 	must I have assessed?
must you have assessed?
must he have assessed?
must we have assessed?
must you have assessed?
must they have assessed? 	must I have been assessing?
must you have been assessing?
must he have been assessing?
must we have been assessing?
must you have been assessing?
must they have been assessing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not assess?
must you not assess?
must he not assess?
must we not assess?
must you not assess?
must they not assess? 	must I not be assessing?
must you not be assessing?
must he not be assessing?
must we not be assessing?
must you not be assessing?
must they not be assessing? 	must I not have assessed?
must you not have assessed?
must he not have assessed?
must we not have assessed?
must you not have assessed?
must they not have assessed? 	must I not have been assessing?
must you not have been assessing?
must he not have been assessing?
must we not have been assessing?
must you not have been assessing?
must they not have been assessing?