may retrofire
Regular verb: retrofire - retrofired- retrofired

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

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

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

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