must perseverate
Verbe régulier : perseverate - perseverated- perseverated

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must perseverate
you must perseverate
he must perseverate
we must perseverate
you must perseverate
they must perseverate 	I must be perseverating
you must be perseverating
he must be perseverating
we must be perseverating
you must be perseverating
they must be perseverating	I must have perseverated
you must have perseverated
he must have perseverated
we must have perseverated
you must have perseverated
they must have perseverated	I must have been perseverating
you must have been perseverating
he must have been perseverating
we must have been perseverating
you must have been perseverating
they must have been perseverating	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must not perseverate
you must not perseverate
he must not perseverate
we must not perseverate
you must not perseverate
they must not perseverate 	I must not be perseverating
you must not be perseverating
he must not be perseverating
we must not be perseverating
you must not be perseverating
they must not be perseverating	I must not have perseverated
you must not have perseverated
he must not have perseverated
we must not have perseverated
you must not have perseverated
they must not have perseverated	I must not have been perseverating
you must not have been perseverating
he must not have been perseverating
we must not have been perseverating
you must not have been perseverating
they must not have been perseverating	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I perseverate?
must you perseverate?
must he perseverate?
must we perseverate?
must you perseverate?
must they perseverate? 	must I be perseverating?
must you be perseverating?
must he be perseverating?
must we be perseverating?
must you be perseverating?
must they be perseverating? 	must I have perseverated?
must you have perseverated?
must he have perseverated?
must we have perseverated?
must you have perseverated?
must they have perseverated? 	must I have been perseverating?
must you have been perseverating?
must he have been perseverating?
must we have been perseverating?
must you have been perseverating?
must they have been perseverating? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I not perseverate?
must you not perseverate?
must he not perseverate?
must we not perseverate?
must you not perseverate?
must they not perseverate? 	must I not be perseverating?
must you not be perseverating?
must he not be perseverating?
must we not be perseverating?
must you not be perseverating?
must they not be perseverating? 	must I not have perseverated?
must you not have perseverated?
must he not have perseverated?
must we not have perseverated?
must you not have perseverated?
must they not have perseverated? 	must I not have been perseverating?
must you not have been perseverating?
must he not have been perseverating?
must we not have been perseverating?
must you not have been perseverating?
must they not have been perseverating?