| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [vb past] been [vb pp] for [adj] [noun pl] | 33 |
|
| 2 | had [been] [vb pp] for [adj] [noun pl] | 33 |
|
| 3 | [vb past] [been] [vb pp] for [adj] purposes | 8 |
|
| 4 | [vb past] [been] used for [adj] [noun pl] | 7 |
|
| 5 | [vb past] [been] [vb pp] for [adj] reasons | 6 |
|
| 6 | [vb past] [been] [vb pp] for political [noun pl] | 5 |
|
