must underplay
Verbo regular: underplay - underplayed- underplayed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must underplay
you must underplay
he must underplay
we must underplay
you must underplay
they must underplay 	I must be underplaying
you must be underplaying
he must be underplaying
we must be underplaying
you must be underplaying
they must be underplaying	I must have underplayed
you must have underplayed
he must have underplayed
we must have underplayed
you must have underplayed
they must have underplayed	I must have been underplaying
you must have been underplaying
he must have been underplaying
we must have been underplaying
you must have been underplaying
they must have been underplaying	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not underplay
you must not underplay
he must not underplay
we must not underplay
you must not underplay
they must not underplay 	I must not be underplaying
you must not be underplaying
he must not be underplaying
we must not be underplaying
you must not be underplaying
they must not be underplaying	I must not have underplayed
you must not have underplayed
he must not have underplayed
we must not have underplayed
you must not have underplayed
they must not have underplayed	I must not have been underplaying
you must not have been underplaying
he must not have been underplaying
we must not have been underplaying
you must not have been underplaying
they must not have been underplaying	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I underplay?
must you underplay?
must he underplay?
must we underplay?
must you underplay?
must they underplay? 	must I be underplaying?
must you be underplaying?
must he be underplaying?
must we be underplaying?
must you be underplaying?
must they be underplaying? 	must I have underplayed?
must you have underplayed?
must he have underplayed?
must we have underplayed?
must you have underplayed?
must they have underplayed? 	must I have been underplaying?
must you have been underplaying?
must he have been underplaying?
must we have been underplaying?
must you have been underplaying?
must they have been underplaying? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not underplay?
must you not underplay?
must he not underplay?
must we not underplay?
must you not underplay?
must they not underplay? 	must I not be underplaying?
must you not be underplaying?
must he not be underplaying?
must we not be underplaying?
must you not be underplaying?
must they not be underplaying? 	must I not have underplayed?
must you not have underplayed?
must he not have underplayed?
must we not have underplayed?
must you not have underplayed?
must they not have underplayed? 	must I not have been underplaying?
must you not have been underplaying?
must he not have been underplaying?
must we not have been underplaying?
must you not have been underplaying?
must they not have been underplaying?