must pie
Verbo regular: pie - pied- pied

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must pie
you must pie
she must pie
we must pie
you must pie
they must pie 	I must be pying
you must be pying
she must be pying
we must be pying
you must be pying
they must be pying	I must have pied
you must have pied
she must have pied
we must have pied
you must have pied
they must have pied	I must have been pying
you must have been pying
she must have been pying
we must have been pying
you must have been pying
they must have been pying	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not pie
you must not pie
she must not pie
we must not pie
you must not pie
they must not pie 	I must not be pying
you must not be pying
she must not be pying
we must not be pying
you must not be pying
they must not be pying	I must not have pied
you must not have pied
she must not have pied
we must not have pied
you must not have pied
they must not have pied	I must not have been pying
you must not have been pying
she must not have been pying
we must not have been pying
you must not have been pying
they must not have been pying	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I pie?
must you pie?
must she pie?
must we pie?
must you pie?
must they pie? 	must I be pying?
must you be pying?
must she be pying?
must we be pying?
must you be pying?
must they be pying? 	must I have pied?
must you have pied?
must she have pied?
must we have pied?
must you have pied?
must they have pied? 	must I have been pying?
must you have been pying?
must she have been pying?
must we have been pying?
must you have been pying?
must they have been pying? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not pie?
must you not pie?
must she not pie?
must we not pie?
must you not pie?
must they not pie? 	must I not be pying?
must you not be pying?
must she not be pying?
must we not be pying?
must you not be pying?
must they not be pying? 	must I not have pied?
must you not have pied?
must she not have pied?
must we not have pied?
must you not have pied?
must they not have pied? 	must I not have been pying?
must you not have been pying?
must she not have been pying?
must we not have been pying?
must you not have been pying?
must they not have been pying?