must showcase
Verbe régulier : showcase - showcased- showcased
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Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must showcase
you must showcase
he must showcase
we must showcase
you must showcase
they must showcase 	I must be showcasing
you must be showcasing
he must be showcasing
we must be showcasing
you must be showcasing
they must be showcasing	I must have showcased
you must have showcased
he must have showcased
we must have showcased
you must have showcased
they must have showcased	I must have been showcasing
you must have been showcasing
he must have been showcasing
we must have been showcasing
you must have been showcasing
they must have been showcasing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not showcase
you must not showcase
he must not showcase
we must not showcase
you must not showcase
they must not showcase 	I must not be showcasing
you must not be showcasing
he must not be showcasing
we must not be showcasing
you must not be showcasing
they must not be showcasing	I must not have showcased
you must not have showcased
he must not have showcased
we must not have showcased
you must not have showcased
they must not have showcased	I must not have been showcasing
you must not have been showcasing
he must not have been showcasing
we must not have been showcasing
you must not have been showcasing
they must not have been showcasing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I showcase?
must you showcase?
must he showcase?
must we showcase?
must you showcase?
must they showcase? 	must I be showcasing?
must you be showcasing?
must he be showcasing?
must we be showcasing?
must you be showcasing?
must they be showcasing? 	must I have showcased?
must you have showcased?
must he have showcased?
must we have showcased?
must you have showcased?
must they have showcased? 	must I have been showcasing?
must you have been showcasing?
must he have been showcasing?
must we have been showcasing?
must you have been showcasing?
must they have been showcasing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not showcase?
must you not showcase?
must he not showcase?
must we not showcase?
must you not showcase?
must they not showcase? 	must I not be showcasing?
must you not be showcasing?
must he not be showcasing?
must we not be showcasing?
must you not be showcasing?
must they not be showcasing? 	must I not have showcased?
must you not have showcased?
must he not have showcased?
must we not have showcased?
must you not have showcased?
must they not have showcased? 	must I not have been showcasing?
must you not have been showcasing?
must he not have been showcasing?
must we not have been showcasing?
must you not have been showcasing?
must they not have been showcasing?