連続 れんぞく もど交配 こうはいじゃなかったです
renzoku modoshi kōhaijanakattadesu

Noun
Desu Copula

The polite, past negative form of 連続戻し交配

1. Wasn't continuous backcrossing.; Wasn't a series of backcrosses.

Past/Perfective
Negative
Polite
Casual Register