must overestimate
Verbo regular: overestimate - overestimated- overestimated

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must overestimate
you must overestimate
he must overestimate
we must overestimate
you must overestimate
they must overestimate 	I must be overestimating
you must be overestimating
he must be overestimating
we must be overestimating
you must be overestimating
they must be overestimating	I must have overestimated
you must have overestimated
he must have overestimated
we must have overestimated
you must have overestimated
they must have overestimated	I must have been overestimating
you must have been overestimating
he must have been overestimating
we must have been overestimating
you must have been overestimating
they must have been overestimating	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not overestimate
you must not overestimate
he must not overestimate
we must not overestimate
you must not overestimate
they must not overestimate 	I must not be overestimating
you must not be overestimating
he must not be overestimating
we must not be overestimating
you must not be overestimating
they must not be overestimating	I must not have overestimated
you must not have overestimated
he must not have overestimated
we must not have overestimated
you must not have overestimated
they must not have overestimated	I must not have been overestimating
you must not have been overestimating
he must not have been overestimating
we must not have been overestimating
you must not have been overestimating
they must not have been overestimating	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I overestimate?
must you overestimate?
must he overestimate?
must we overestimate?
must you overestimate?
must they overestimate? 	must I be overestimating?
must you be overestimating?
must he be overestimating?
must we be overestimating?
must you be overestimating?
must they be overestimating? 	must I have overestimated?
must you have overestimated?
must he have overestimated?
must we have overestimated?
must you have overestimated?
must they have overestimated? 	must I have been overestimating?
must you have been overestimating?
must he have been overestimating?
must we have been overestimating?
must you have been overestimating?
must they have been overestimating? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not overestimate?
must you not overestimate?
must he not overestimate?
must we not overestimate?
must you not overestimate?
must they not overestimate? 	must I not be overestimating?
must you not be overestimating?
must he not be overestimating?
must we not be overestimating?
must you not be overestimating?
must they not be overestimating? 	must I not have overestimated?
must you not have overestimated?
must he not have overestimated?
must we not have overestimated?
must you not have overestimated?
must they not have overestimated? 	must I not have been overestimating?
must you not have been overestimating?
must he not have been overestimating?
must we not have been overestimating?
must you not have been overestimating?
must they not have been overestimating?