ようか~まいか
Usage
Used to express hesitation, like "do A or stop doing A."
Vよう + か + V普通 + まいか
Examples
行こうか、行くまいかShould I go or should I not go?
雨だ。買い物をしに行こうか、行くまいか
It's raining.. Should I go to buy groceries or not?