何方 どちら
dochiramo

Expression

1. both

Usually Written in Kana
これらはどちらも“意志 いし未来 みらい”と ばれるもので、主語 しゅご意図 いと ふくまれています。
korerawa dochiramoishimiraito yobareru monode shugono itoga fukumarete imasu.
These are both called "future volitional" and include the intent of the subject.
Expression

2. (not) either

Usually Written in Kana
わたくしはそのふたごのどちらも らない。
watashiwa sono futagono dochiramo shiranai
I don't know either twin.
Other forms: