| Associated with して構いません |
| Associated with may |
| Associated with しても構いません |
| Associated with optional |
| Associated with 構わない |
| Associated with 任意選択 |
| Associated with してもよい |
| Associated with 構いません |
| Associated with OPTIONAL |
| Associated with OPTIONALLY |
| Associated with 任意選択で |
| Associated with optionally |
| Associated with MAY NOT |
| Associated with NEED NOT |