母子 ぼし留学 りゅうがくじゃなかったです
boshiryūgakujanakattadesu

Noun
Desu Copula

The polite, past negative form of 母子留学

1. Wasn't studying abroad with mother and child.; Wasn't a mother-child study abroad experience.

Past/Perfective
Negative
Polite
Casual Register