must prefocus
Verbe régulier : prefocus - prefocused- prefocused

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must prefocus
you must prefocus
she must prefocus
we must prefocus
you must prefocus
they must prefocus 	I must be prefocusing
you must be prefocusing
she must be prefocusing
we must be prefocusing
you must be prefocusing
they must be prefocusing	I must have prefocused
you must have prefocused
she must have prefocused
we must have prefocused
you must have prefocused
they must have prefocused	I must have been prefocusing
you must have been prefocusing
she must have been prefocusing
we must have been prefocusing
you must have been prefocusing
they must have been prefocusing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't prefocus
you mustn't prefocus
she mustn't prefocus
we mustn't prefocus
you mustn't prefocus
they mustn't prefocus 	I mustn't be prefocusing
you mustn't be prefocusing
she mustn't be prefocusing
we mustn't be prefocusing
you mustn't be prefocusing
they mustn't be prefocusing	I mustn't have prefocused
you mustn't have prefocused
she mustn't have prefocused
we mustn't have prefocused
you mustn't have prefocused
they mustn't have prefocused	I mustn't have been prefocusing
you mustn't have been prefocusing
she mustn't have been prefocusing
we mustn't have been prefocusing
you mustn't have been prefocusing
they mustn't have been prefocusing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I prefocus?
must you prefocus?
must she prefocus?
must we prefocus?
must you prefocus?
must they prefocus? 	must I be prefocusing?
must you be prefocusing?
must she be prefocusing?
must we be prefocusing?
must you be prefocusing?
must they be prefocusing? 	must I have prefocused?
must you have prefocused?
must she have prefocused?
must we have prefocused?
must you have prefocused?
must they have prefocused? 	must I have been prefocusing?
must you have been prefocusing?
must she have been prefocusing?
must we have been prefocusing?
must you have been prefocusing?
must they have been prefocusing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I prefocus?
mustn't you prefocus?
mustn't she prefocus?
mustn't we prefocus?
mustn't you prefocus?
mustn't they prefocus? 	mustn't I be prefocusing?
mustn't you be prefocusing?
mustn't she be prefocusing?
mustn't we be prefocusing?
mustn't you be prefocusing?
mustn't they be prefocusing? 	mustn't I have prefocused?
mustn't you have prefocused?
mustn't she have prefocused?
mustn't we have prefocused?
mustn't you have prefocused?
mustn't they have prefocused? 	mustn't I have been prefocusing?
mustn't you have been prefocusing?
mustn't she have been prefocusing?
mustn't we have been prefocusing?
mustn't you have been prefocusing?
mustn't they have been prefocusing?