Does よ in 歩きたいですからよ correct?

Question

In a context like this:

A. どうしてドアを開けましたか。

B.歩きたいですからよ。

The bunpo-check keeps showing me that the よ is not correct. If it's so, why, and if it's correct, does the よ make the sentence sounds feminine?

Thanks!

Answer 1

よ by itself is not wrong, but the part before it is wrong. In this context, you have to say 歩きたいからです(よ).

• ～からです = It is because ～.
• ～ですから = because it is ～, ...

よ as a sentence-end particle may or may not sound feminine depending on the type of the word it follows. よ does not sound feminine after です or だ. For details, see: how could a sentence end with (noun + "よ"?)

(からよ is a possible combination when よ is used as a filler particle, but this type of よ sounds rough and masculine, and doesn't go well with です/ます.)

Also note that you usually need an explanatory-の in the first sentence: どうしてドアを開けたのですか or どうしてドアを開けたんですか.