At a glance
Verb ようが Verb まいが means "whether (someone) does it or not". It says that the result or decision does not change either way. It has a stiff, emphatic tone.
Verb (volitional) + が、Verb (まい form) + が、[result that does not change]
雨が降ろうが降るまいが、試合は行われます。 Whether it rains or not, the match will be held.
How to form it
The same verb is used twice: first in the volitional form + が, then in the まい (negative volitional) form + が.
| Verb group | Volitional + が | まい form + が | Full pattern |
|---|---|---|---|
| う-verb 行く | 行こうが | 行くまいが | 行こうが行くまいが |
| る-verb 食べる | 食べようが | 食べまいが / 食べるまいが | 食べようが食べまいが |
| する | しようが | しまいが / するまいが | しようがしまいが |
| 来る | 来ようが | 来るまいが / 来まいが | 来ようが来るまいが |
For う-verbs, まい attaches to the dictionary form. For る-verbs, する and 来る, more than one まい form is standard.