must recognise
Verbo regular: recognise - recognised- recognised

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must recognise
you must recognise
he must recognise
we must recognise
you must recognise
they must recognise 	I must be recognising
you must be recognising
he must be recognising
we must be recognising
you must be recognising
they must be recognising	I must have recognised
you must have recognised
he must have recognised
we must have recognised
you must have recognised
they must have recognised	I must have been recognising
you must have been recognising
he must have been recognising
we must have been recognising
you must have been recognising
they must have been recognising	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't recognise
you mustn't recognise
he mustn't recognise
we mustn't recognise
you mustn't recognise
they mustn't recognise 	I mustn't be recognising
you mustn't be recognising
he mustn't be recognising
we mustn't be recognising
you mustn't be recognising
they mustn't be recognising	I mustn't have recognised
you mustn't have recognised
he mustn't have recognised
we mustn't have recognised
you mustn't have recognised
they mustn't have recognised	I mustn't have been recognising
you mustn't have been recognising
he mustn't have been recognising
we mustn't have been recognising
you mustn't have been recognising
they mustn't have been recognising	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I recognise?
must you recognise?
must he recognise?
must we recognise?
must you recognise?
must they recognise? 	must I be recognising?
must you be recognising?
must he be recognising?
must we be recognising?
must you be recognising?
must they be recognising? 	must I have recognised?
must you have recognised?
must he have recognised?
must we have recognised?
must you have recognised?
must they have recognised? 	must I have been recognising?
must you have been recognising?
must he have been recognising?
must we have been recognising?
must you have been recognising?
must they have been recognising? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I recognise?
mustn't you recognise?
mustn't he recognise?
mustn't we recognise?
mustn't you recognise?
mustn't they recognise? 	mustn't I be recognising?
mustn't you be recognising?
mustn't he be recognising?
mustn't we be recognising?
mustn't you be recognising?
mustn't they be recognising? 	mustn't I have recognised?
mustn't you have recognised?
mustn't he have recognised?
mustn't we have recognised?
mustn't you have recognised?
mustn't they have recognised? 	mustn't I have been recognising?
mustn't you have been recognising?
mustn't he have been recognising?
mustn't we have been recognising?
mustn't you have been recognising?
mustn't they have been recognising?