I may backfire you may backfire he may backfire we may backfire you may backfire they may backfire
V-ing form
I may be backfiring you may be backfiring he may be backfiring we may be backfiring you may be backfiring they may be backfiring
Perfect
I may have backfired you may have backfired he may have backfired we may have backfired you may have backfired they may have backfired
V-ing perfect
I may have been backfiring you may have been backfiring he may have been backfiring we may have been backfiring you may have been backfiring they may have been backfiring
Negation
Simple form
I may not backfire you may not backfire he may not backfire we may not backfire you may not backfire they may not backfire
V-ing form
I may not be backfiring you may not be backfiring he may not be backfiring we may not be backfiring you may not be backfiring they may not be backfiring
Perfect
I may not have backfired you may not have backfired he may not have backfired we may not have backfired you may not have backfired they may not have backfired
V-ing perfect
I may not have been backfiring you may not have been backfiring he may not have been backfiring we may not have been backfiring you may not have been backfiring they may not have been backfiring
Interrogative form
Simple form
may I backfire? may you backfire? may he backfire? may we backfire? may you backfire? may they backfire?
V-ing form
may I be backfiring? may you be backfiring? may he be backfiring? may we be backfiring? may you be backfiring? may they be backfiring?
Perfect
may I have backfired? may you have backfired? may he have backfired? may we have backfired? may you have backfired? may they have backfired?
V-ing perfect
may I have been backfiring? may you have been backfiring? may he have been backfiring? may we have been backfiring? may you have been backfiring? may they have been backfiring?
Interro-negative form
Simple form
may I not backfire? may you not backfire? may he not backfire? may we not backfire? may you not backfire? may they not backfire?
V-ing form
may I not be backfiring? may you not be backfiring? may he not be backfiring? may we not be backfiring? may you not be backfiring? may they not be backfiring?
Perfect
may I not have backfired? may you not have backfired? may he not have backfired? may we not have backfired? may you not have backfired? may they not have backfired?
V-ing perfect
may I not have been backfiring? may you not have been backfiring? may he not have been backfiring? may we not have been backfiring? may you not have been backfiring? may they not have been backfiring?