N2 — outside your level filter
write + let's + if only it were possible to
kakou mononara
if only it were possible to; if you were to — and it would be a disaster
できるものなら、あの日の判断をやり直したい。
dekiru mono nara, ano hi no handan o yarinaoshitai.
If it were possible, I would take back the decision I made that day. neutral
会議中に居眠りでもしようものなら、部長に一日中嫌味を言われる。
kaigichuu ni inemuri demo shiyou mono nara, buchou ni ichinichijuu iyami o iwareru.
If you so much as nod off in a meeting, the department head will needle you about it all day. neutral