添加 てんか部分 ぶぶん要素 ようそじゃなかったです
tenkabubun'yōsojanakattadesu

Noun
Desu Copula

The polite, past negative form of 添加部分要素

1. Wasn't adding elements.; Didn't add parts.

Past/Perfective
Negative
Polite
Casual Register
Computing