バレンタインデーだったら
barentaindēdattara
1. If it were Valentine's Day; If Valentine's Day happened
★ Common
Noun
#833947
1. If it were Valentine's Day; If Valentine's Day happened
1. if it's the case
1. data; datum
1. day (as in holiday)
2. daytime
1. (Saint) Valentine
1. not be found
1. birthday