やっってはならない
ya'ttewa naranai
1. Must not do; Do not do
★ Common
Adjective
#1173417
1. Must not do; Do not do
1. even if; even though
2. however; no matter how
1. hooray; yay
1. I see; that's right
1. once; before
2. never yet; never before
1. way (of doing); manner