must optimise
Verbe régulier : optimise - optimised- optimised
Traduction française : optimiser - optimaliser 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must optimise
you must optimise
she must optimise
we must optimise
you must optimise
they must optimise 	I must be optimising
you must be optimising
she must be optimising
we must be optimising
you must be optimising
they must be optimising	I must have optimised
you must have optimised
she must have optimised
we must have optimised
you must have optimised
they must have optimised	I must have been optimising
you must have been optimising
she must have been optimising
we must have been optimising
you must have been optimising
they must have been optimising	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't optimise
you mustn't optimise
she mustn't optimise
we mustn't optimise
you mustn't optimise
they mustn't optimise 	I mustn't be optimising
you mustn't be optimising
she mustn't be optimising
we mustn't be optimising
you mustn't be optimising
they mustn't be optimising	I mustn't have optimised
you mustn't have optimised
she mustn't have optimised
we mustn't have optimised
you mustn't have optimised
they mustn't have optimised	I mustn't have been optimising
you mustn't have been optimising
she mustn't have been optimising
we mustn't have been optimising
you mustn't have been optimising
they mustn't have been optimising	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I optimise?
must you optimise?
must she optimise?
must we optimise?
must you optimise?
must they optimise? 	must I be optimising?
must you be optimising?
must she be optimising?
must we be optimising?
must you be optimising?
must they be optimising? 	must I have optimised?
must you have optimised?
must she have optimised?
must we have optimised?
must you have optimised?
must they have optimised? 	must I have been optimising?
must you have been optimising?
must she have been optimising?
must we have been optimising?
must you have been optimising?
must they have been optimising? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I optimise?
mustn't you optimise?
mustn't she optimise?
mustn't we optimise?
mustn't you optimise?
mustn't they optimise? 	mustn't I be optimising?
mustn't you be optimising?
mustn't she be optimising?
mustn't we be optimising?
mustn't you be optimising?
mustn't they be optimising? 	mustn't I have optimised?
mustn't you have optimised?
mustn't she have optimised?
mustn't we have optimised?
mustn't you have optimised?
mustn't they have optimised? 	mustn't I have been optimising?
mustn't you have been optimising?
mustn't she have been optimising?
mustn't we have been optimising?
mustn't you have been optimising?
mustn't they have been optimising?