なりっぱなしじゃありませんでした
鳴りっぱなしじゃありませんでした
narippanashijārimasendeshita

Noun
Desu Copula

The polite, past negative form of なりっぱなし

1. Wasn't ringing.; Wasn't making noise.; Wasn't continuing.

Past/Perfective
Negative
Polite
Terminal Form
Usually Written in Kana