can retrofire
Regular verb: retrofire - retrofired- retrofired

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can retrofire
you can retrofire
he can retrofire
we can retrofire
you can retrofire
they can retrofire 	I can be retrofiring
you can be retrofiring
he can be retrofiring
we can be retrofiring
you can be retrofiring
they can be retrofiring	I can have retrofired
you can have retrofired
he can have retrofired
we can have retrofired
you can have retrofired
they can have retrofired	I can have been retrofiring
you can have been retrofiring
he can have been retrofiring
we can have been retrofiring
you can have been retrofiring
they can have been retrofiring	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I can't retrofire
you can't retrofire
he can't retrofire
we can't retrofire
you can't retrofire
they can't retrofire 	I can't be retrofiring
you can't be retrofiring
he can't be retrofiring
we can't be retrofiring
you can't be retrofiring
they can't be retrofiring	I can't have retrofired
you can't have retrofired
he can't have retrofired
we can't have retrofired
you can't have retrofired
they can't have retrofired	I can't have been retrofiring
you can't have been retrofiring
he can't have been retrofiring
we can't have been retrofiring
you can't have been retrofiring
they can't have been retrofiring	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can I retrofire?
can you retrofire?
can he retrofire?
can we retrofire?
can you retrofire?
can they retrofire? 	can I be retrofiring?
can you be retrofiring?
can he be retrofiring?
can we be retrofiring?
can you be retrofiring?
can they be retrofiring? 	can I have retrofired?
can you have retrofired?
can he have retrofired?
can we have retrofired?
can you have retrofired?
can they have retrofired? 	can I have been retrofiring?
can you have been retrofiring?
can he have been retrofiring?
can we have been retrofiring?
can you have been retrofiring?
can they have been retrofiring? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
can't I retrofire?
can't you retrofire?
can't he retrofire?
can't we retrofire?
can't you retrofire?
can't they retrofire? 	can't I be retrofiring?
can't you be retrofiring?
can't he be retrofiring?
can't we be retrofiring?
can't you be retrofiring?
can't they be retrofiring? 	can't I have retrofired?
can't you have retrofired?
can't he have retrofired?
can't we have retrofired?
can't you have retrofired?
can't they have retrofired? 	can't I have been retrofiring?
can't you have been retrofiring?
can't he have been retrofiring?
can't we have been retrofiring?
can't you have been retrofiring?
can't they have been retrofiring?