must extrude
Verbo regular: extrude - extruded- extruded

Afirmação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I must extrude
you must extrude
he must extrude
we must extrude
you must extrude
they must extrude 	I must be extruding
you must be extruding
he must be extruding
we must be extruding
you must be extruding
they must be extruding	I must have extruded
you must have extruded
he must have extruded
we must have extruded
you must have extruded
they must have extruded	I must have been extruding
you must have been extruding
he must have been extruding
we must have been extruding
you must have been extruding
they must have been extruding	

Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
I mustn't extrude
you mustn't extrude
he mustn't extrude
we mustn't extrude
you mustn't extrude
they mustn't extrude 	I mustn't be extruding
you mustn't be extruding
he mustn't be extruding
we mustn't be extruding
you mustn't be extruding
they mustn't be extruding	I mustn't have extruded
you mustn't have extruded
he mustn't have extruded
we mustn't have extruded
you mustn't have extruded
they mustn't have extruded	I mustn't have been extruding
you mustn't have been extruding
he mustn't have been extruding
we mustn't have been extruding
you mustn't have been extruding
they mustn't have been extruding	

Forma interrogativa 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
must I extrude?
must you extrude?
must he extrude?
must we extrude?
must you extrude?
must they extrude? 	must I be extruding?
must you be extruding?
must he be extruding?
must we be extruding?
must you be extruding?
must they be extruding? 	must I have extruded?
must you have extruded?
must he have extruded?
must we have extruded?
must you have extruded?
must they have extruded? 	must I have been extruding?
must you have been extruding?
must he have been extruding?
must we have been extruding?
must you have been extruding?
must they have been extruding? 	

Forma interro-Negação 	
Forma simple 	Forma com V-ing 	Perfeito 	Perfeito com V-ing 	
mustn't I extrude?
mustn't you extrude?
mustn't he extrude?
mustn't we extrude?
mustn't you extrude?
mustn't they extrude? 	mustn't I be extruding?
mustn't you be extruding?
mustn't he be extruding?
mustn't we be extruding?
mustn't you be extruding?
mustn't they be extruding? 	mustn't I have extruded?
mustn't you have extruded?
mustn't he have extruded?
mustn't we have extruded?
mustn't you have extruded?
mustn't they have extruded? 	mustn't I have been extruding?
mustn't you have been extruding?
mustn't he have been extruding?
mustn't we have been extruding?
mustn't you have been extruding?
mustn't they have been extruding?