must taper
Verbo regular: taper - tapered- tapered

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must taper
you must taper
he must taper
we must taper
you must taper
they must taper 	I must be tapering
you must be tapering
he must be tapering
we must be tapering
you must be tapering
they must be tapering	I must have tapered
you must have tapered
he must have tapered
we must have tapered
you must have tapered
they must have tapered	I must have been tapering
you must have been tapering
he must have been tapering
we must have been tapering
you must have been tapering
they must have been tapering	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not taper
you must not taper
he must not taper
we must not taper
you must not taper
they must not taper 	I must not be tapering
you must not be tapering
he must not be tapering
we must not be tapering
you must not be tapering
they must not be tapering	I must not have tapered
you must not have tapered
he must not have tapered
we must not have tapered
you must not have tapered
they must not have tapered	I must not have been tapering
you must not have been tapering
he must not have been tapering
we must not have been tapering
you must not have been tapering
they must not have been tapering	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I taper?
must you taper?
must he taper?
must we taper?
must you taper?
must they taper? 	must I be tapering?
must you be tapering?
must he be tapering?
must we be tapering?
must you be tapering?
must they be tapering? 	must I have tapered?
must you have tapered?
must he have tapered?
must we have tapered?
must you have tapered?
must they have tapered? 	must I have been tapering?
must you have been tapering?
must he have been tapering?
must we have been tapering?
must you have been tapering?
must they have been tapering? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not taper?
must you not taper?
must he not taper?
must we not taper?
must you not taper?
must they not taper? 	must I not be tapering?
must you not be tapering?
must he not be tapering?
must we not be tapering?
must you not be tapering?
must they not be tapering? 	must I not have tapered?
must you not have tapered?
must he not have tapered?
must we not have tapered?
must you not have tapered?
must they not have tapered? 	must I not have been tapering?
must you not have been tapering?
must he not have been tapering?
must we not have been tapering?
must you not have been tapering?
must they not have been tapering?