must need
Verbo regular: need - needed- needed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must need
you must need
she must need
we must need
you must need
they must need 	I must be needing
you must be needing
she must be needing
we must be needing
you must be needing
they must be needing	I must have needed
you must have needed
she must have needed
we must have needed
you must have needed
they must have needed	I must have been needing
you must have been needing
she must have been needing
we must have been needing
you must have been needing
they must have been needing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't need
you mustn't need
she mustn't need
we mustn't need
you mustn't need
they mustn't need 	I mustn't be needing
you mustn't be needing
she mustn't be needing
we mustn't be needing
you mustn't be needing
they mustn't be needing	I mustn't have needed
you mustn't have needed
she mustn't have needed
we mustn't have needed
you mustn't have needed
they mustn't have needed	I mustn't have been needing
you mustn't have been needing
she mustn't have been needing
we mustn't have been needing
you mustn't have been needing
they mustn't have been needing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I need?
must you need?
must she need?
must we need?
must you need?
must they need? 	must I be needing?
must you be needing?
must she be needing?
must we be needing?
must you be needing?
must they be needing? 	must I have needed?
must you have needed?
must she have needed?
must we have needed?
must you have needed?
must they have needed? 	must I have been needing?
must you have been needing?
must she have been needing?
must we have been needing?
must you have been needing?
must they have been needing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I need?
mustn't you need?
mustn't she need?
mustn't we need?
mustn't you need?
mustn't they need? 	mustn't I be needing?
mustn't you be needing?
mustn't she be needing?
mustn't we be needing?
mustn't you be needing?
mustn't they be needing? 	mustn't I have needed?
mustn't you have needed?
mustn't she have needed?
mustn't we have needed?
mustn't you have needed?
mustn't they have needed? 	mustn't I have been needing?
mustn't you have been needing?
mustn't she have been needing?
mustn't we have been needing?
mustn't you have been needing?
mustn't they have been needing?