| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] [been] missing for [adj] [noun pl] | 9 |
|
| 2 | [vb past] been missing for [adj] [noun] | 9 |
|
| 3 | [vb past] [been] missing for [num] [noun] | 8 |
|
| 4 | had [been] missing for [adj] [noun] | 7 |
|
