| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have been missing for [num] [noun pl] | 13 |
|
| 2 | [vb past] been missing for [num] [noun pl] | 8 |
|
| 3 | had been missing for [num] [noun pl] | 6 |
|
| 4 | [verb] been missing for [num] days | 6 |
|
