must retrofire
Verbe régulier : retrofire - retrofired- retrofired

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must retrofire
you must retrofire
he must retrofire
we must retrofire
you must retrofire
they must retrofire 	I must be retrofiring
you must be retrofiring
he must be retrofiring
we must be retrofiring
you must be retrofiring
they must be retrofiring	I must have retrofired
you must have retrofired
he must have retrofired
we must have retrofired
you must have retrofired
they must have retrofired	I must have been retrofiring
you must have been retrofiring
he must have been retrofiring
we must have been retrofiring
you must have been retrofiring
they must have been retrofiring	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't retrofire
you mustn't retrofire
he mustn't retrofire
we mustn't retrofire
you mustn't retrofire
they mustn't retrofire 	I mustn't be retrofiring
you mustn't be retrofiring
he mustn't be retrofiring
we mustn't be retrofiring
you mustn't be retrofiring
they mustn't be retrofiring	I mustn't have retrofired
you mustn't have retrofired
he mustn't have retrofired
we mustn't have retrofired
you mustn't have retrofired
they mustn't have retrofired	I mustn't have been retrofiring
you mustn't have been retrofiring
he mustn't have been retrofiring
we mustn't have been retrofiring
you mustn't have been retrofiring
they mustn't have been retrofiring	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I retrofire?
must you retrofire?
must he retrofire?
must we retrofire?
must you retrofire?
must they retrofire? 	must I be retrofiring?
must you be retrofiring?
must he be retrofiring?
must we be retrofiring?
must you be retrofiring?
must they be retrofiring? 	must I have retrofired?
must you have retrofired?
must he have retrofired?
must we have retrofired?
must you have retrofired?
must they have retrofired? 	must I have been retrofiring?
must you have been retrofiring?
must he have been retrofiring?
must we have been retrofiring?
must you have been retrofiring?
must they have been retrofiring? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I retrofire?
mustn't you retrofire?
mustn't he retrofire?
mustn't we retrofire?
mustn't you retrofire?
mustn't they retrofire? 	mustn't I be retrofiring?
mustn't you be retrofiring?
mustn't he be retrofiring?
mustn't we be retrofiring?
mustn't you be retrofiring?
mustn't they be retrofiring? 	mustn't I have retrofired?
mustn't you have retrofired?
mustn't he have retrofired?
mustn't we have retrofired?
mustn't you have retrofired?
mustn't they have retrofired? 	mustn't I have been retrofiring?
mustn't you have been retrofiring?
mustn't he have been retrofiring?
mustn't we have been retrofiring?
mustn't you have been retrofiring?
mustn't they have been retrofiring?