YOU SAID:
If I had a million dollars, I build a tree fort in our yard
INTO JAPANESE
私が百万ドルを持っていたら、私は私たちの庭に木の砦を建てます。
BACK INTO ENGLISH
If I have a million dollars, I will build a wooden fence in our garden.
INTO JAPANESE
私が百万ドルを持っているならば、私は私たちの庭に木の塀を建てるでしょう。
BACK INTO ENGLISH
If I have a million dollars, I will build a wooden fence in our garden.
You've done this before, haven't you.