YOU SAID:
opening up a shop is very funny
INTO JAPANESE
店を開くのはとても面白い
BACK INTO ENGLISH
Very interesting to open a store
INTO JAPANESE
出店するのがとても面白い
BACK INTO ENGLISH
It is very interesting to open a store
INTO JAPANESE
出店するのはとても面白いです
BACK INTO ENGLISH
It is very interesting to open a store
You've done this before, haven't you.