must leaf
Verbo regular: leaf - leafed- leafed

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must leaf
you must leaf
he must leaf
we must leaf
you must leaf
they must leaf 	I must be leafing
you must be leafing
he must be leafing
we must be leafing
you must be leafing
they must be leafing	I must have leafed
you must have leafed
he must have leafed
we must have leafed
you must have leafed
they must have leafed	I must have been leafing
you must have been leafing
he must have been leafing
we must have been leafing
you must have been leafing
they must have been leafing	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't leaf
you mustn't leaf
he mustn't leaf
we mustn't leaf
you mustn't leaf
they mustn't leaf 	I mustn't be leafing
you mustn't be leafing
he mustn't be leafing
we mustn't be leafing
you mustn't be leafing
they mustn't be leafing	I mustn't have leafed
you mustn't have leafed
he mustn't have leafed
we mustn't have leafed
you mustn't have leafed
they mustn't have leafed	I mustn't have been leafing
you mustn't have been leafing
he mustn't have been leafing
we mustn't have been leafing
you mustn't have been leafing
they mustn't have been leafing	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I leaf?
must you leaf?
must he leaf?
must we leaf?
must you leaf?
must they leaf? 	must I be leafing?
must you be leafing?
must he be leafing?
must we be leafing?
must you be leafing?
must they be leafing? 	must I have leafed?
must you have leafed?
must he have leafed?
must we have leafed?
must you have leafed?
must they have leafed? 	must I have been leafing?
must you have been leafing?
must he have been leafing?
must we have been leafing?
must you have been leafing?
must they have been leafing? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I leaf?
mustn't you leaf?
mustn't he leaf?
mustn't we leaf?
mustn't you leaf?
mustn't they leaf? 	mustn't I be leafing?
mustn't you be leafing?
mustn't he be leafing?
mustn't we be leafing?
mustn't you be leafing?
mustn't they be leafing? 	mustn't I have leafed?
mustn't you have leafed?
mustn't he have leafed?
mustn't we have leafed?
mustn't you have leafed?
mustn't they have leafed? 	mustn't I have been leafing?
mustn't you have been leafing?
mustn't he have been leafing?
mustn't we have been leafing?
mustn't you have been leafing?
mustn't they have been leafing?