YOU SAID:

There are only two genders, don't make me say it twice

INTO JAPANESE

性別は2つしかありません。私はそれを2回言わせません。

BACK INTO ENGLISH

There are only two sexes. I will not say it twice.

INTO JAPANESE

性別は2つしかない。私はそれを二度も言わない。

BACK INTO ENGLISH

There are only two gender. I never say it twice.

INTO JAPANESE

性別は2つしかありません。私はそれを二度言ったことはありません。

BACK INTO ENGLISH

There are only two sexes. I have never said it twice.

INTO JAPANESE

性別は2つしかない。私はそれを二度言ったことはありません。

BACK INTO ENGLISH

There are only two gender. I have never said it twice.

INTO JAPANESE

性別は2つしかありません。私はそれを二度言ったことはありません。

BACK INTO ENGLISH

There are only two sexes. I have never said it twice.

INTO JAPANESE

性別は2つしかない。私はそれを二度言ったことはありません。

BACK INTO ENGLISH

There are only two gender. I have never said it twice.