must gull
Verbo regular: gull - gulled- gulled

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must gull
you must gull
he must gull
we must gull
you must gull
they must gull 	I must be gulling
you must be gulling
he must be gulling
we must be gulling
you must be gulling
they must be gulling	I must have gulled
you must have gulled
he must have gulled
we must have gulled
you must have gulled
they must have gulled	I must have been gulling
you must have been gulling
he must have been gulling
we must have been gulling
you must have been gulling
they must have been gulling	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must not gull
you must not gull
he must not gull
we must not gull
you must not gull
they must not gull 	I must not be gulling
you must not be gulling
he must not be gulling
we must not be gulling
you must not be gulling
they must not be gulling	I must not have gulled
you must not have gulled
he must not have gulled
we must not have gulled
you must not have gulled
they must not have gulled	I must not have been gulling
you must not have been gulling
he must not have been gulling
we must not have been gulling
you must not have been gulling
they must not have been gulling	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I gull?
must you gull?
must he gull?
must we gull?
must you gull?
must they gull? 	must I be gulling?
must you be gulling?
must he be gulling?
must we be gulling?
must you be gulling?
must they be gulling? 	must I have gulled?
must you have gulled?
must he have gulled?
must we have gulled?
must you have gulled?
must they have gulled? 	must I have been gulling?
must you have been gulling?
must he have been gulling?
must we have been gulling?
must you have been gulling?
must they have been gulling? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I not gull?
must you not gull?
must he not gull?
must we not gull?
must you not gull?
must they not gull? 	must I not be gulling?
must you not be gulling?
must he not be gulling?
must we not be gulling?
must you not be gulling?
must they not be gulling? 	must I not have gulled?
must you not have gulled?
must he not have gulled?
must we not have gulled?
must you not have gulled?
must they not have gulled? 	must I not have been gulling?
must you not have been gulling?
must he not have been gulling?
must we not have been gulling?
must you not have been gulling?
must they not have been gulling?