must apologise
Verbo regular: apologise - apologised- apologised

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I must apologise
you must apologise
he must apologise
we must apologise
you must apologise
they must apologise 	I must be apologising
you must be apologising
he must be apologising
we must be apologising
you must be apologising
they must be apologising	I must have apologised
you must have apologised
he must have apologised
we must have apologised
you must have apologised
they must have apologised	I must have been apologising
you must have been apologising
he must have been apologising
we must have been apologising
you must have been apologising
they must have been apologising	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I mustn't apologise
you mustn't apologise
he mustn't apologise
we mustn't apologise
you mustn't apologise
they mustn't apologise 	I mustn't be apologising
you mustn't be apologising
he mustn't be apologising
we mustn't be apologising
you mustn't be apologising
they mustn't be apologising	I mustn't have apologised
you mustn't have apologised
he mustn't have apologised
we mustn't have apologised
you mustn't have apologised
they mustn't have apologised	I mustn't have been apologising
you mustn't have been apologising
he mustn't have been apologising
we mustn't have been apologising
you mustn't have been apologising
they mustn't have been apologising	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
must I apologise?
must you apologise?
must he apologise?
must we apologise?
must you apologise?
must they apologise? 	must I be apologising?
must you be apologising?
must he be apologising?
must we be apologising?
must you be apologising?
must they be apologising? 	must I have apologised?
must you have apologised?
must he have apologised?
must we have apologised?
must you have apologised?
must they have apologised? 	must I have been apologising?
must you have been apologising?
must he have been apologising?
must we have been apologising?
must you have been apologising?
must they have been apologising? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
mustn't I apologise?
mustn't you apologise?
mustn't he apologise?
mustn't we apologise?
mustn't you apologise?
mustn't they apologise? 	mustn't I be apologising?
mustn't you be apologising?
mustn't he be apologising?
mustn't we be apologising?
mustn't you be apologising?
mustn't they be apologising? 	mustn't I have apologised?
mustn't you have apologised?
mustn't he have apologised?
mustn't we have apologised?
mustn't you have apologised?
mustn't they have apologised? 	mustn't I have been apologising?
mustn't you have been apologising?
mustn't he have been apologising?
mustn't we have been apologising?
mustn't you have been apologising?
mustn't they have been apologising?