must certificate
Verbe régulier : certificate - certificated- certificated

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must certificate
you must certificate
he must certificate
we must certificate
you must certificate
they must certificate 	I must be certificating
you must be certificating
he must be certificating
we must be certificating
you must be certificating
they must be certificating	I must have certificated
you must have certificated
he must have certificated
we must have certificated
you must have certificated
they must have certificated	I must have been certificating
you must have been certificating
he must have been certificating
we must have been certificating
you must have been certificating
they must have been certificating	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't certificate
you mustn't certificate
he mustn't certificate
we mustn't certificate
you mustn't certificate
they mustn't certificate 	I mustn't be certificating
you mustn't be certificating
he mustn't be certificating
we mustn't be certificating
you mustn't be certificating
they mustn't be certificating	I mustn't have certificated
you mustn't have certificated
he mustn't have certificated
we mustn't have certificated
you mustn't have certificated
they mustn't have certificated	I mustn't have been certificating
you mustn't have been certificating
he mustn't have been certificating
we mustn't have been certificating
you mustn't have been certificating
they mustn't have been certificating	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I certificate?
must you certificate?
must he certificate?
must we certificate?
must you certificate?
must they certificate? 	must I be certificating?
must you be certificating?
must he be certificating?
must we be certificating?
must you be certificating?
must they be certificating? 	must I have certificated?
must you have certificated?
must he have certificated?
must we have certificated?
must you have certificated?
must they have certificated? 	must I have been certificating?
must you have been certificating?
must he have been certificating?
must we have been certificating?
must you have been certificating?
must they have been certificating? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I certificate?
mustn't you certificate?
mustn't he certificate?
mustn't we certificate?
mustn't you certificate?
mustn't they certificate? 	mustn't I be certificating?
mustn't you be certificating?
mustn't he be certificating?
mustn't we be certificating?
mustn't you be certificating?
mustn't they be certificating? 	mustn't I have certificated?
mustn't you have certificated?
mustn't he have certificated?
mustn't we have certificated?
mustn't you have certificated?
mustn't they have certificated? 	mustn't I have been certificating?
mustn't you have been certificating?
mustn't he have been certificating?
mustn't we have been certificating?
mustn't you have been certificating?
mustn't they have been certificating?