must spin
Verbo irregular: spin - spun- spun

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must spin
you must spin
she must spin
we must spin
you must spin
they must spin 	I must be spinning
you must be spinning
she must be spinning
we must be spinning
you must be spinning
they must be spinning	I must have spun
you must have spun
she must have spun
we must have spun
you must have spun
they must have spun	I must have been spinning
you must have been spinning
she must have been spinning
we must have been spinning
you must have been spinning
they must have been spinning	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't spin
you mustn't spin
she mustn't spin
we mustn't spin
you mustn't spin
they mustn't spin 	I mustn't be spinning
you mustn't be spinning
she mustn't be spinning
we mustn't be spinning
you mustn't be spinning
they mustn't be spinning	I mustn't have spun
you mustn't have spun
she mustn't have spun
we mustn't have spun
you mustn't have spun
they mustn't have spun	I mustn't have been spinning
you mustn't have been spinning
she mustn't have been spinning
we mustn't have been spinning
you mustn't have been spinning
they mustn't have been spinning	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I spin?
must you spin?
must she spin?
must we spin?
must you spin?
must they spin? 	must I be spinning?
must you be spinning?
must she be spinning?
must we be spinning?
must you be spinning?
must they be spinning? 	must I have spun?
must you have spun?
must she have spun?
must we have spun?
must you have spun?
must they have spun? 	must I have been spinning?
must you have been spinning?
must she have been spinning?
must we have been spinning?
must you have been spinning?
must they have been spinning? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I spin?
mustn't you spin?
mustn't she spin?
mustn't we spin?
mustn't you spin?
mustn't they spin? 	mustn't I be spinning?
mustn't you be spinning?
mustn't she be spinning?
mustn't we be spinning?
mustn't you be spinning?
mustn't they be spinning? 	mustn't I have spun?
mustn't you have spun?
mustn't she have spun?
mustn't we have spun?
mustn't you have spun?
mustn't they have spun? 	mustn't I have been spinning?
mustn't you have been spinning?
mustn't she have been spinning?
mustn't we have been spinning?
mustn't you have been spinning?
mustn't they have been spinning?