could retrofire
Verbe régulier : retrofire - retrofired- retrofired

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

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I could not retrofire
you could not retrofire
he could not retrofire
we could not retrofire
you could not retrofire
they could not retrofire 	I could not be retrofiring
you could not be retrofiring
he could not be retrofiring
we could not be retrofiring
you could not be retrofiring
they could not be retrofiring	I could not have retrofired
you could not have retrofired
he could not have retrofired
we could not have retrofired
you could not have retrofired
they could not have retrofired	I could not have been retrofiring
you could not have been retrofiring
he could not have been retrofiring
we could not have been retrofiring
you could not have been retrofiring
they could not have been retrofiring	

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

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