must excogitate
Verbe régulier : excogitate - excogitated- excogitated

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must excogitate
you must excogitate
he must excogitate
we must excogitate
you must excogitate
they must excogitate 	I must be excogitating
you must be excogitating
he must be excogitating
we must be excogitating
you must be excogitating
they must be excogitating	I must have excogitated
you must have excogitated
he must have excogitated
we must have excogitated
you must have excogitated
they must have excogitated	I must have been excogitating
you must have been excogitating
he must have been excogitating
we must have been excogitating
you must have been excogitating
they must have been excogitating	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't excogitate
you mustn't excogitate
he mustn't excogitate
we mustn't excogitate
you mustn't excogitate
they mustn't excogitate 	I mustn't be excogitating
you mustn't be excogitating
he mustn't be excogitating
we mustn't be excogitating
you mustn't be excogitating
they mustn't be excogitating	I mustn't have excogitated
you mustn't have excogitated
he mustn't have excogitated
we mustn't have excogitated
you mustn't have excogitated
they mustn't have excogitated	I mustn't have been excogitating
you mustn't have been excogitating
he mustn't have been excogitating
we mustn't have been excogitating
you mustn't have been excogitating
they mustn't have been excogitating	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I excogitate?
must you excogitate?
must he excogitate?
must we excogitate?
must you excogitate?
must they excogitate? 	must I be excogitating?
must you be excogitating?
must he be excogitating?
must we be excogitating?
must you be excogitating?
must they be excogitating? 	must I have excogitated?
must you have excogitated?
must he have excogitated?
must we have excogitated?
must you have excogitated?
must they have excogitated? 	must I have been excogitating?
must you have been excogitating?
must he have been excogitating?
must we have been excogitating?
must you have been excogitating?
must they have been excogitating? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I excogitate?
mustn't you excogitate?
mustn't he excogitate?
mustn't we excogitate?
mustn't you excogitate?
mustn't they excogitate? 	mustn't I be excogitating?
mustn't you be excogitating?
mustn't he be excogitating?
mustn't we be excogitating?
mustn't you be excogitating?
mustn't they be excogitating? 	mustn't I have excogitated?
mustn't you have excogitated?
mustn't he have excogitated?
mustn't we have excogitated?
mustn't you have excogitated?
mustn't they have excogitated? 	mustn't I have been excogitating?
mustn't you have been excogitating?
mustn't he have been excogitating?
mustn't we have been excogitating?
mustn't you have been excogitating?
mustn't they have been excogitating?