Would you like to go to the exhibition with me if it’s not crowded?
(もし空いてたら、一緒に展覧会にいきませんか?)
Do you want to go to Disneyland if it’s not crowded?
(もし空いてたら、Disneyland に行かない?)
I might go to the dinosaur exhibition tomorrow if it’s not crowded, do you want to go with me?
(明日混んでなかったら恐竜展覧会に行くかもしれない、一緒に行く?)
〜と言えますよ。
If it's not that busy, how about going there together?
If there aren't too many people there, would you like to go there with me?
この場合、次のような言い方ができますよ。
ーIf it's not that busy, how about going there together?
「そんなに混んでいなかったら(空いていたら)一緒に行かない?」
ーIf there aren't too many people there, would you like to go there with me?
「混んでいなかったら(空いてたら)私と一緒に行かない?」
ご参考まで!