must tailspin
Verbo regular: tailspin - tailspined- tailspined

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must tailspin
you must tailspin
she must tailspin
we must tailspin
you must tailspin
they must tailspin 	I must be tailspining
you must be tailspining
she must be tailspining
we must be tailspining
you must be tailspining
they must be tailspining	I must have tailspined
you must have tailspined
she must have tailspined
we must have tailspined
you must have tailspined
they must have tailspined	I must have been tailspining
you must have been tailspining
she must have been tailspining
we must have been tailspining
you must have been tailspining
they must have been tailspining	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't tailspin
you mustn't tailspin
she mustn't tailspin
we mustn't tailspin
you mustn't tailspin
they mustn't tailspin 	I mustn't be tailspining
you mustn't be tailspining
she mustn't be tailspining
we mustn't be tailspining
you mustn't be tailspining
they mustn't be tailspining	I mustn't have tailspined
you mustn't have tailspined
she mustn't have tailspined
we mustn't have tailspined
you mustn't have tailspined
they mustn't have tailspined	I mustn't have been tailspining
you mustn't have been tailspining
she mustn't have been tailspining
we mustn't have been tailspining
you mustn't have been tailspining
they mustn't have been tailspining	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I tailspin?
must you tailspin?
must she tailspin?
must we tailspin?
must you tailspin?
must they tailspin? 	must I be tailspining?
must you be tailspining?
must she be tailspining?
must we be tailspining?
must you be tailspining?
must they be tailspining? 	must I have tailspined?
must you have tailspined?
must she have tailspined?
must we have tailspined?
must you have tailspined?
must they have tailspined? 	must I have been tailspining?
must you have been tailspining?
must she have been tailspining?
must we have been tailspining?
must you have been tailspining?
must they have been tailspining? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I tailspin?
mustn't you tailspin?
mustn't she tailspin?
mustn't we tailspin?
mustn't you tailspin?
mustn't they tailspin? 	mustn't I be tailspining?
mustn't you be tailspining?
mustn't she be tailspining?
mustn't we be tailspining?
mustn't you be tailspining?
mustn't they be tailspining? 	mustn't I have tailspined?
mustn't you have tailspined?
mustn't she have tailspined?
mustn't we have tailspined?
mustn't you have tailspined?
mustn't they have tailspined? 	mustn't I have been tailspining?
mustn't you have been tailspining?
mustn't she have been tailspining?
mustn't we have been tailspining?
mustn't you have been tailspining?
mustn't they have been tailspining?