must upset
Verbo irregular: upset - upset- upset

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must upset
you must upset
she must upset
we must upset
you must upset
they must upset 	I must be upsetting
you must be upsetting
she must be upsetting
we must be upsetting
you must be upsetting
they must be upsetting	I must have upset
you must have upset
she must have upset
we must have upset
you must have upset
they must have upset	I must have been upsetting
you must have been upsetting
she must have been upsetting
we must have been upsetting
you must have been upsetting
they must have been upsetting	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not upset
you must not upset
she must not upset
we must not upset
you must not upset
they must not upset 	I must not be upsetting
you must not be upsetting
she must not be upsetting
we must not be upsetting
you must not be upsetting
they must not be upsetting	I must not have upset
you must not have upset
she must not have upset
we must not have upset
you must not have upset
they must not have upset	I must not have been upsetting
you must not have been upsetting
she must not have been upsetting
we must not have been upsetting
you must not have been upsetting
they must not have been upsetting	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I upset?
must you upset?
must she upset?
must we upset?
must you upset?
must they upset? 	must I be upsetting?
must you be upsetting?
must she be upsetting?
must we be upsetting?
must you be upsetting?
must they be upsetting? 	must I have upset?
must you have upset?
must she have upset?
must we have upset?
must you have upset?
must they have upset? 	must I have been upsetting?
must you have been upsetting?
must she have been upsetting?
must we have been upsetting?
must you have been upsetting?
must they have been upsetting? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not upset?
must you not upset?
must she not upset?
must we not upset?
must you not upset?
must they not upset? 	must I not be upsetting?
must you not be upsetting?
must she not be upsetting?
must we not be upsetting?
must you not be upsetting?
must they not be upsetting? 	must I not have upset?
must you not have upset?
must she not have upset?
must we not have upset?
must you not have upset?
must they not have upset? 	must I not have been upsetting?
must you not have been upsetting?
must she not have been upsetting?
must we not have been upsetting?
must you not have been upsetting?
must they not have been upsetting?