YOU SAID:

The first time you were able and you had to

INTO JAPANESE

初めてできた、そしてそうしなければならなかったとき

BACK INTO ENGLISH

The first time I could and had to.

INTO JAPANESE

初めてできたし、そうしなければならなかった。

BACK INTO ENGLISH

It was the first time I could do it, and I had to do it.

INTO JAPANESE

初めてできたし、やらなければならなかった。

BACK INTO ENGLISH

It was the first time I could do it and I had to do it.

INTO JAPANESE

初めてできたし、やらなければならなかった。

BACK INTO ENGLISH

It was the first time I could do it and I had to do it.