must sash
Verbo regular: sash - sashed- sashed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must sash
you must sash
he must sash
we must sash
you must sash
they must sash 	I must be sashing
you must be sashing
he must be sashing
we must be sashing
you must be sashing
they must be sashing	I must have sashed
you must have sashed
he must have sashed
we must have sashed
you must have sashed
they must have sashed	I must have been sashing
you must have been sashing
he must have been sashing
we must have been sashing
you must have been sashing
they must have been sashing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not sash
you must not sash
he must not sash
we must not sash
you must not sash
they must not sash 	I must not be sashing
you must not be sashing
he must not be sashing
we must not be sashing
you must not be sashing
they must not be sashing	I must not have sashed
you must not have sashed
he must not have sashed
we must not have sashed
you must not have sashed
they must not have sashed	I must not have been sashing
you must not have been sashing
he must not have been sashing
we must not have been sashing
you must not have been sashing
they must not have been sashing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I sash?
must you sash?
must he sash?
must we sash?
must you sash?
must they sash? 	must I be sashing?
must you be sashing?
must he be sashing?
must we be sashing?
must you be sashing?
must they be sashing? 	must I have sashed?
must you have sashed?
must he have sashed?
must we have sashed?
must you have sashed?
must they have sashed? 	must I have been sashing?
must you have been sashing?
must he have been sashing?
must we have been sashing?
must you have been sashing?
must they have been sashing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not sash?
must you not sash?
must he not sash?
must we not sash?
must you not sash?
must they not sash? 	must I not be sashing?
must you not be sashing?
must he not be sashing?
must we not be sashing?
must you not be sashing?
must they not be sashing? 	must I not have sashed?
must you not have sashed?
must he not have sashed?
must we not have sashed?
must you not have sashed?
must they not have sashed? 	must I not have been sashing?
must you not have been sashing?
must he not have been sashing?
must we not have been sashing?
must you not have been sashing?
must they not have been sashing?