それなら話は別だよ。

それなら話は別だよ。

In that case, I'll change my mind.

それなら話(はなし)は別(べつ)だよ。

Sorenara hanashi wa betsu da yo.

其れなら (それなら)

If that's the case ...; If so ...; That being the case ...

話 (はなし)

talk; speech; chat; story; conversation; discussions; negotiation; argument

は (は)

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

別 (べつ、べち)

distinction; difference; different; another; particular; separate; extra; exception

だ (だ)

be; is; indicates past or completed action; indicates light imperative

よ (よ)

indicates certainty, emphasis, contempt, request, etc.; used when calling out to someone; used to catch one's breath or get someone's attention; yo!

Readings: ワ、はな.す、はなし

Meanings: tale, talk

Readings: ベツ、わか.れる、わ.ける

Meanings: separate, branch off, diverge, fork, another, extra, specially