| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | have [been] [vb pp] for several [noun pl] | 17 |
|
| 2 | [verb] [been] [vb pp] for several [noun pl] | 17 |
|
| 3 | [vb past] [been] [vb pp] for several [noun pl] | 7 |
|
| 4 | had [been] [vb pp] for several [noun pl] | 7 |
|
| 5 | have [been] [vb pp] for several [noun pl] | 5 |
|
| 6 | [vb base] [been] [vb pp] for several [noun pl] | 5 |
|
