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には
1. to, for, on, in, at
2. in order to, for
3. as for, regarding
4. while it is (was) the case that ..., indeed ... (but), certainly ... (but)
tbd
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なければ， 無ければ
1. if (it) doesn't exist, if there is no ..., if (one) doesn't have ...
2. if not ..., unless ...
3. have to ..., must ...
tbd
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いけない
1. bad, wrong, naughty
2. must not (do, be), should not, ought not to
3. useless, no good, bad
4. hopeless, beyond hope
5. unfortunate, a shame, a pity
6. unable to drink (alcohol)
7. so as not to ..., so that ... (won't), in case ..., for fear that ...
以免……，以免……，以防万一……，担心……，唯恐……；坏了！坏的，错的；无望，毫无希望；真不幸，真遗憾，真可惜
