must spoil
Verbo irregular: spoil - spoiled, spoilt- spoiled, spoilt

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must spoil
you must spoil
she must spoil
we must spoil
you must spoil
they must spoil 	I must be spoiling
you must be spoiling
she must be spoiling
we must be spoiling
you must be spoiling
they must be spoiling	I must have spoiled, spoilt
you must have spoiled, spoilt
she must have spoiled, spoilt
we must have spoiled, spoilt
you must have spoiled, spoilt
they must have spoiled, spoilt	I must have been spoiling
you must have been spoiling
she must have been spoiling
we must have been spoiling
you must have been spoiling
they must have been spoiling	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must not spoil
you must not spoil
she must not spoil
we must not spoil
you must not spoil
they must not spoil 	I must not be spoiling
you must not be spoiling
she must not be spoiling
we must not be spoiling
you must not be spoiling
they must not be spoiling	I must not have spoiled, spoilt
you must not have spoiled, spoilt
she must not have spoiled, spoilt
we must not have spoiled, spoilt
you must not have spoiled, spoilt
they must not have spoiled, spoilt	I must not have been spoiling
you must not have been spoiling
she must not have been spoiling
we must not have been spoiling
you must not have been spoiling
they must not have been spoiling	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I spoil?
must you spoil?
must she spoil?
must we spoil?
must you spoil?
must they spoil? 	must I be spoiling?
must you be spoiling?
must she be spoiling?
must we be spoiling?
must you be spoiling?
must they be spoiling? 	must I have spoiled, spoilt?
must you have spoiled, spoilt?
must she have spoiled, spoilt?
must we have spoiled, spoilt?
must you have spoiled, spoilt?
must they have spoiled, spoilt? 	must I have been spoiling?
must you have been spoiling?
must she have been spoiling?
must we have been spoiling?
must you have been spoiling?
must they have been spoiling? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I not spoil?
must you not spoil?
must she not spoil?
must we not spoil?
must you not spoil?
must they not spoil? 	must I not be spoiling?
must you not be spoiling?
must she not be spoiling?
must we not be spoiling?
must you not be spoiling?
must they not be spoiling? 	must I not have spoiled, spoilt?
must you not have spoiled, spoilt?
must she not have spoiled, spoilt?
must we not have spoiled, spoilt?
must you not have spoiled, spoilt?
must they not have spoiled, spoilt? 	must I not have been spoiling?
must you not have been spoiling?
must she not have been spoiling?
must we not have been spoiling?
must you not have been spoiling?
must they not have been spoiling?