must sweat
Verbo regular: sweat - sweated- sweated

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must sweat
you must sweat
he must sweat
we must sweat
you must sweat
they must sweat 	I must be sweating
you must be sweating
he must be sweating
we must be sweating
you must be sweating
they must be sweating	I must have sweated
you must have sweated
he must have sweated
we must have sweated
you must have sweated
they must have sweated	I must have been sweating
you must have been sweating
he must have been sweating
we must have been sweating
you must have been sweating
they must have been sweating	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not sweat
you must not sweat
he must not sweat
we must not sweat
you must not sweat
they must not sweat 	I must not be sweating
you must not be sweating
he must not be sweating
we must not be sweating
you must not be sweating
they must not be sweating	I must not have sweated
you must not have sweated
he must not have sweated
we must not have sweated
you must not have sweated
they must not have sweated	I must not have been sweating
you must not have been sweating
he must not have been sweating
we must not have been sweating
you must not have been sweating
they must not have been sweating	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I sweat?
must you sweat?
must he sweat?
must we sweat?
must you sweat?
must they sweat? 	must I be sweating?
must you be sweating?
must he be sweating?
must we be sweating?
must you be sweating?
must they be sweating? 	must I have sweated?
must you have sweated?
must he have sweated?
must we have sweated?
must you have sweated?
must they have sweated? 	must I have been sweating?
must you have been sweating?
must he have been sweating?
must we have been sweating?
must you have been sweating?
must they have been sweating? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not sweat?
must you not sweat?
must he not sweat?
must we not sweat?
must you not sweat?
must they not sweat? 	must I not be sweating?
must you not be sweating?
must he not be sweating?
must we not be sweating?
must you not be sweating?
must they not be sweating? 	must I not have sweated?
must you not have sweated?
must he not have sweated?
must we not have sweated?
must you not have sweated?
must they not have sweated? 	must I not have been sweating?
must you not have been sweating?
must he not have been sweating?
must we not have been sweating?
must you not have been sweating?
must they not have been sweating?