must practise
Verbe régulier : practise - practised- practised
Traduction française : (UK) s'exercer à - pratiquer - (UK) s'entraîner 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must practise
you must practise
she must practise
we must practise
you must practise
they must practise 	I must be practising
you must be practising
she must be practising
we must be practising
you must be practising
they must be practising	I must have practised
you must have practised
she must have practised
we must have practised
you must have practised
they must have practised	I must have been practising
you must have been practising
she must have been practising
we must have been practising
you must have been practising
they must have been practising	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't practise
you mustn't practise
she mustn't practise
we mustn't practise
you mustn't practise
they mustn't practise 	I mustn't be practising
you mustn't be practising
she mustn't be practising
we mustn't be practising
you mustn't be practising
they mustn't be practising	I mustn't have practised
you mustn't have practised
she mustn't have practised
we mustn't have practised
you mustn't have practised
they mustn't have practised	I mustn't have been practising
you mustn't have been practising
she mustn't have been practising
we mustn't have been practising
you mustn't have been practising
they mustn't have been practising	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I practise?
must you practise?
must she practise?
must we practise?
must you practise?
must they practise? 	must I be practising?
must you be practising?
must she be practising?
must we be practising?
must you be practising?
must they be practising? 	must I have practised?
must you have practised?
must she have practised?
must we have practised?
must you have practised?
must they have practised? 	must I have been practising?
must you have been practising?
must she have been practising?
must we have been practising?
must you have been practising?
must they have been practising? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I practise?
mustn't you practise?
mustn't she practise?
mustn't we practise?
mustn't you practise?
mustn't they practise? 	mustn't I be practising?
mustn't you be practising?
mustn't she be practising?
mustn't we be practising?
mustn't you be practising?
mustn't they be practising? 	mustn't I have practised?
mustn't you have practised?
mustn't she have practised?
mustn't we have practised?
mustn't you have practised?
mustn't they have practised? 	mustn't I have been practising?
mustn't you have been practising?
mustn't she have been practising?
mustn't we have been practising?
mustn't you have been practising?
mustn't they have been practising?