文部 もんぶ科学 かがく しょう検定 けんてい ずみ教科 きょうか しょだったら
mombukaga kushōkenteizumi kyōkashodattara

Noun
Da Copula

The "-tara" conditional form ("if/when…") of 文部科学省検定済教科書

1. If it were a textbook approved by the Ministry of Education, Culture, Sports, Science and Technology; If it had been a textbook approved by the Ministry of Education, Culture, Sports, Science and Technology

Tara Conditional