must interleave
Verbo regular: interleave - interleaved- interleaved

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must interleave
you must interleave
he must interleave
we must interleave
you must interleave
they must interleave 	I must be interleaving
you must be interleaving
he must be interleaving
we must be interleaving
you must be interleaving
they must be interleaving	I must have interleaved
you must have interleaved
he must have interleaved
we must have interleaved
you must have interleaved
they must have interleaved	I must have been interleaving
you must have been interleaving
he must have been interleaving
we must have been interleaving
you must have been interleaving
they must have been interleaving	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't interleave
you mustn't interleave
he mustn't interleave
we mustn't interleave
you mustn't interleave
they mustn't interleave 	I mustn't be interleaving
you mustn't be interleaving
he mustn't be interleaving
we mustn't be interleaving
you mustn't be interleaving
they mustn't be interleaving	I mustn't have interleaved
you mustn't have interleaved
he mustn't have interleaved
we mustn't have interleaved
you mustn't have interleaved
they mustn't have interleaved	I mustn't have been interleaving
you mustn't have been interleaving
he mustn't have been interleaving
we mustn't have been interleaving
you mustn't have been interleaving
they mustn't have been interleaving	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I interleave?
must you interleave?
must he interleave?
must we interleave?
must you interleave?
must they interleave? 	must I be interleaving?
must you be interleaving?
must he be interleaving?
must we be interleaving?
must you be interleaving?
must they be interleaving? 	must I have interleaved?
must you have interleaved?
must he have interleaved?
must we have interleaved?
must you have interleaved?
must they have interleaved? 	must I have been interleaving?
must you have been interleaving?
must he have been interleaving?
must we have been interleaving?
must you have been interleaving?
must they have been interleaving? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I interleave?
mustn't you interleave?
mustn't he interleave?
mustn't we interleave?
mustn't you interleave?
mustn't they interleave? 	mustn't I be interleaving?
mustn't you be interleaving?
mustn't he be interleaving?
mustn't we be interleaving?
mustn't you be interleaving?
mustn't they be interleaving? 	mustn't I have interleaved?
mustn't you have interleaved?
mustn't he have interleaved?
mustn't we have interleaved?
mustn't you have interleaved?
mustn't they have interleaved? 	mustn't I have been interleaving?
mustn't you have been interleaving?
mustn't he have been interleaving?
mustn't we have been interleaving?
mustn't you have been interleaving?
mustn't they have been interleaving?