must swap
Verbo regular: swap - swaped- swaped

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must swap
you must swap
he must swap
we must swap
you must swap
they must swap 	I must be swaping
you must be swaping
he must be swaping
we must be swaping
you must be swaping
they must be swaping	I must have swaped
you must have swaped
he must have swaped
we must have swaped
you must have swaped
they must have swaped	I must have been swaping
you must have been swaping
he must have been swaping
we must have been swaping
you must have been swaping
they must have been swaping	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't swap
you mustn't swap
he mustn't swap
we mustn't swap
you mustn't swap
they mustn't swap 	I mustn't be swaping
you mustn't be swaping
he mustn't be swaping
we mustn't be swaping
you mustn't be swaping
they mustn't be swaping	I mustn't have swaped
you mustn't have swaped
he mustn't have swaped
we mustn't have swaped
you mustn't have swaped
they mustn't have swaped	I mustn't have been swaping
you mustn't have been swaping
he mustn't have been swaping
we mustn't have been swaping
you mustn't have been swaping
they mustn't have been swaping	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I swap?
must you swap?
must he swap?
must we swap?
must you swap?
must they swap? 	must I be swaping?
must you be swaping?
must he be swaping?
must we be swaping?
must you be swaping?
must they be swaping? 	must I have swaped?
must you have swaped?
must he have swaped?
must we have swaped?
must you have swaped?
must they have swaped? 	must I have been swaping?
must you have been swaping?
must he have been swaping?
must we have been swaping?
must you have been swaping?
must they have been swaping? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I swap?
mustn't you swap?
mustn't he swap?
mustn't we swap?
mustn't you swap?
mustn't they swap? 	mustn't I be swaping?
mustn't you be swaping?
mustn't he be swaping?
mustn't we be swaping?
mustn't you be swaping?
mustn't they be swaping? 	mustn't I have swaped?
mustn't you have swaped?
mustn't he have swaped?
mustn't we have swaped?
mustn't you have swaped?
mustn't they have swaped? 	mustn't I have been swaping?
mustn't you have been swaping?
mustn't he have been swaping?
mustn't we have been swaping?
mustn't you have been swaping?
mustn't they have been swaping?