母子 ぼし留学 りゅうがくじゃありませんでした
boshiryūgakujārimasendeshita

Noun
Desu Copula

The polite, past negative form of 母子留学

1. Was not studying abroad with mother and child.; Was not a mother-child study abroad arrangement.

Past/Perfective
Negative
Polite
Terminal Form