YOU SAID:

We're off to see the wizard.

INTO JAPANESE

会いに行きます。

BACK INTO ENGLISH

I go to see.

INTO JAPANESE

私は見に行きます。

BACK INTO ENGLISH

I will go to see.

INTO JAPANESE

私は見に行くでしょう。

BACK INTO ENGLISH

I go to see.

INTO JAPANESE

私が見に行きます。

BACK INTO ENGLISH

I have to go.

INTO JAPANESE

私は行かなければならない。

BACK INTO ENGLISH

I have to go.