“If one is careless” in Japanese
Short answer
If one is careless in Japanese is “下手したら” (hetashitara). Full meaning: if one is unlucky, if one is careless.
Other ways to say “If one is careless” in Japanese
下手すれば
hetasureba if one is unlucky, if one is careless
下手すると
hetasuruto if one is unlucky, if one is careless, if things don't go well
下手をすれば
hetawosureba if one is unlucky, if one is careless
下手をすると
hetawosuruto if one is unlucky, if one is careless, if things don't go well
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